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Finding the Fourth Proportional to 572,409.20, 858,613.80 and 507,455.30

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Solution

The fourth proportional to 572,409.20, 858,613.80 and 507,455.30 is: 761,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,409.20 : 858,613.80 = 507,455.30 : x
  2. Step 2: Convert to fraction form
    572,409.20/858,613.80 = 507,455.30/x
  3. Step 3: Cross multiply
    572,409.20x = 858,613.80 × 507,455.30
  4. Step 4: Simplify right side
    572,409.20x = 435,708,123,463.14
  5. Step 5: Solve for x
    x = 435,708,123,463.14/572,409.20
  6. Step 6: Final answer
    x = 761,182.95

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Similar ratio
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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.