Home / 878,684.76-1,317,553.16-398,650.61

Finding the Fourth Proportional to 878,684.76, 1,317,553.16 and 398,650.61

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Solution

The fourth proportional to 878,684.76, 1,317,553.16 and 398,650.61 is: 597,760.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,684.76 : 1,317,553.16 = 398,650.61 : x
  2. Step 2: Convert to fraction form
    878,684.76/1,317,553.16 = 398,650.61/x
  3. Step 3: Cross multiply
    878,684.76x = 1,317,553.16 × 398,650.61
  4. Step 4: Simplify right side
    878,684.76x = 525,243,372,242.06
  5. Step 5: Solve for x
    x = 525,243,372,242.06/878,684.76
  6. Step 6: Final answer
    x = 597,760.88

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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.