Home / 981,248.32-1,354,138.66-539,740.35

Finding the Fourth Proportional to 981,248.32, 1,354,138.66 and 539,740.35

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Solution

The fourth proportional to 981,248.32, 1,354,138.66 and 539,740.35 is: 744,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,248.32 : 1,354,138.66 = 539,740.35 : x
  2. Step 2: Convert to fraction form
    981,248.32/1,354,138.66 = 539,740.35/x
  3. Step 3: Cross multiply
    981,248.32x = 1,354,138.66 × 539,740.35
  4. Step 4: Simplify right side
    981,248.32x = 730,883,270,498.15
  5. Step 5: Solve for x
    x = 730,883,270,498.15/981,248.32
  6. Step 6: Final answer
    x = 744,850.47

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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.