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Finding the Fourth Proportional to 437,229.87, 603,655.79 and 356,849.11

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Solution

The fourth proportional to 437,229.87, 603,655.79 and 356,849.11 is: 492,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,229.87 : 603,655.79 = 356,849.11 : x
  2. Step 2: Convert to fraction form
    437,229.87/603,655.79 = 356,849.11/x
  3. Step 3: Cross multiply
    437,229.87x = 603,655.79 × 356,849.11
  4. Step 4: Simplify right side
    437,229.87x = 215,414,031,407.85
  5. Step 5: Solve for x
    x = 215,414,031,407.85/437,229.87
  6. Step 6: Final answer
    x = 492,679.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.