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Finding the Fourth Proportional to 500,440.11, 750,665.03 and 126,463.11

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Solution

The fourth proportional to 500,440.11, 750,665.03 and 126,463.11 is: 189,695.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,440.11 : 750,665.03 = 126,463.11 : x
  2. Step 2: Convert to fraction form
    500,440.11/750,665.03 = 126,463.11/x
  3. Step 3: Cross multiply
    500,440.11x = 750,665.03 × 126,463.11
  4. Step 4: Simplify right side
    500,440.11x = 94,931,433,629.73
  5. Step 5: Solve for x
    x = 94,931,433,629.73/500,440.11
  6. Step 6: Final answer
    x = 189,695.89

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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.