Home / 656,463.42-905,042.10-492,422.61

Finding the Fourth Proportional to 656,463.42, 905,042.10 and 492,422.61

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Solution

The fourth proportional to 656,463.42, 905,042.10 and 492,422.61 is: 678,885.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,463.42 : 905,042.10 = 492,422.61 : x
  2. Step 2: Convert to fraction form
    656,463.42/905,042.10 = 492,422.61/x
  3. Step 3: Cross multiply
    656,463.42x = 905,042.10 × 492,422.61
  4. Step 4: Simplify right side
    656,463.42x = 445,663,193,041.88
  5. Step 5: Solve for x
    x = 445,663,193,041.88/656,463.42
  6. Step 6: Final answer
    x = 678,885.04

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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.