Home / 1,029,023.80-1,543,535.70-319,123.60

Finding the Fourth Proportional to 1,029,023.80, 1,543,535.70 and 319,123.60

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Solution

The fourth proportional to 1,029,023.80, 1,543,535.70 and 319,123.60 is: 478,685.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,023.80 : 1,543,535.70 = 319,123.60 : x
  2. Step 2: Convert to fraction form
    1,029,023.80/1,543,535.70 = 319,123.60/x
  3. Step 3: Cross multiply
    1,029,023.80x = 1,543,535.70 × 319,123.60
  4. Step 4: Simplify right side
    1,029,023.80x = 492,578,669,312.52
  5. Step 5: Solve for x
    x = 492,578,669,312.52/1,029,023.80
  6. Step 6: Final answer
    x = 478,685.40

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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.