Home / 656,463.92-905,042.82-492,423.08

Finding the Fourth Proportional to 656,463.92, 905,042.82 and 492,423.08

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Solution

The fourth proportional to 656,463.92, 905,042.82 and 492,423.08 is: 678,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,463.92 : 905,042.82 = 492,423.08 : x
  2. Step 2: Convert to fraction form
    656,463.92/905,042.82 = 492,423.08/x
  3. Step 3: Cross multiply
    656,463.92x = 905,042.82 × 492,423.08
  4. Step 4: Simplify right side
    656,463.92x = 445,663,972,956.29
  5. Step 5: Solve for x
    x = 445,663,972,956.29/656,463.92
  6. Step 6: Final answer
    x = 678,885.71

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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.