Home / 840,472.86-1,159,850.98-458,499.61

Finding the Fourth Proportional to 840,472.86, 1,159,850.98 and 458,499.61

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Solution

The fourth proportional to 840,472.86, 1,159,850.98 and 458,499.61 is: 632,728.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,472.86 : 1,159,850.98 = 458,499.61 : x
  2. Step 2: Convert to fraction form
    840,472.86/1,159,850.98 = 458,499.61/x
  3. Step 3: Cross multiply
    840,472.86x = 1,159,850.98 × 458,499.61
  4. Step 4: Simplify right side
    840,472.86x = 531,791,221,988.12
  5. Step 5: Solve for x
    x = 531,791,221,988.12/840,472.86
  6. Step 6: Final answer
    x = 632,728.61

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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.