Home / 1,029,665.40-1,544,498.10-319,765.20

Finding the Fourth Proportional to 1,029,665.40, 1,544,498.10 and 319,765.20

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Solution

The fourth proportional to 1,029,665.40, 1,544,498.10 and 319,765.20 is: 479,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,665.40 : 1,544,498.10 = 319,765.20 : x
  2. Step 2: Convert to fraction form
    1,029,665.40/1,544,498.10 = 319,765.20/x
  3. Step 3: Cross multiply
    1,029,665.40x = 1,544,498.10 × 319,765.20
  4. Step 4: Simplify right side
    1,029,665.40x = 493,876,743,846.12
  5. Step 5: Solve for x
    x = 493,876,743,846.12/1,029,665.40
  6. Step 6: Final answer
    x = 479,647.80

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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.