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Finding the Fourth Proportional to 437,615.40, 656,423.10 and 349,041.90

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Solution

The fourth proportional to 437,615.40, 656,423.10 and 349,041.90 is: 523,562.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,615.40 : 656,423.10 = 349,041.90 : x
  2. Step 2: Convert to fraction form
    437,615.40/656,423.10 = 349,041.90/x
  3. Step 3: Cross multiply
    437,615.40x = 656,423.10 × 349,041.90
  4. Step 4: Simplify right side
    437,615.40x = 229,119,166,027.89
  5. Step 5: Solve for x
    x = 229,119,166,027.89/437,615.40
  6. Step 6: Final answer
    x = 523,562.85

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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.