Home / 1,387,755.18-1,915,632.18-904,439.52

Finding the Fourth Proportional to 1,387,755.18, 1,915,632.18 and 904,439.52

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Solution

The fourth proportional to 1,387,755.18, 1,915,632.18 and 904,439.52 is: 1,248,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,755.18 : 1,915,632.18 = 904,439.52 : x
  2. Step 2: Convert to fraction form
    1,387,755.18/1,915,632.18 = 904,439.52/x
  3. Step 3: Cross multiply
    1,387,755.18x = 1,915,632.18 × 904,439.52
  4. Step 4: Simplify right side
    1,387,755.18x = 1,732,573,449,375.75
  5. Step 5: Solve for x
    x = 1,732,573,449,375.75/1,387,755.18
  6. Step 6: Final answer
    x = 1,248,471.97

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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.