Home / 709,337.40-1,064,006.10-443,398.20

Finding the Fourth Proportional to 709,337.40, 1,064,006.10 and 443,398.20

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Solution

The fourth proportional to 709,337.40, 1,064,006.10 and 443,398.20 is: 665,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,337.40 : 1,064,006.10 = 443,398.20 : x
  2. Step 2: Convert to fraction form
    709,337.40/1,064,006.10 = 443,398.20/x
  3. Step 3: Cross multiply
    709,337.40x = 1,064,006.10 × 443,398.20
  4. Step 4: Simplify right side
    709,337.40x = 471,778,389,529.02
  5. Step 5: Solve for x
    x = 471,778,389,529.02/709,337.40
  6. Step 6: Final answer
    x = 665,097.30

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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.