Home / 1,029,131.40-1,543,697.10-319,231.20

Finding the Fourth Proportional to 1,029,131.40, 1,543,697.10 and 319,231.20

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Solution

The fourth proportional to 1,029,131.40, 1,543,697.10 and 319,231.20 is: 478,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,131.40 : 1,543,697.10 = 319,231.20 : x
  2. Step 2: Convert to fraction form
    1,029,131.40/1,543,697.10 = 319,231.20/x
  3. Step 3: Cross multiply
    1,029,131.40x = 1,543,697.10 × 319,231.20
  4. Step 4: Simplify right side
    1,029,131.40x = 492,796,277,669.52
  5. Step 5: Solve for x
    x = 492,796,277,669.52/1,029,131.40
  6. Step 6: Final answer
    x = 478,846.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.