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Finding the Fourth Proportional to 424,871.10, 637,306.65 and 386,163.90

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Solution

The fourth proportional to 424,871.10, 637,306.65 and 386,163.90 is: 579,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,871.10 : 637,306.65 = 386,163.90 : x
  2. Step 2: Convert to fraction form
    424,871.10/637,306.65 = 386,163.90/x
  3. Step 3: Cross multiply
    424,871.10x = 637,306.65 × 386,163.90
  4. Step 4: Simplify right side
    424,871.10x = 246,104,821,459.94
  5. Step 5: Solve for x
    x = 246,104,821,459.94/424,871.10
  6. Step 6: Final answer
    x = 579,245.85

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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.