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Finding the Fourth Proportional to 614,139.04, 847,489.50 and 342,192.88

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Solution

The fourth proportional to 614,139.04, 847,489.50 and 342,192.88 is: 472,213.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,139.04 : 847,489.50 = 342,192.88 : x
  2. Step 2: Convert to fraction form
    614,139.04/847,489.50 = 342,192.88/x
  3. Step 3: Cross multiply
    614,139.04x = 847,489.50 × 342,192.88
  4. Step 4: Simplify right side
    614,139.04x = 290,004,872,774.76
  5. Step 5: Solve for x
    x = 290,004,872,774.76/614,139.04
  6. Step 6: Final answer
    x = 472,213.71

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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.