Home / 908,540.31-1,253,841.37-500,641.91

Finding the Fourth Proportional to 908,540.31, 1,253,841.37 and 500,641.91

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Solution

The fourth proportional to 908,540.31, 1,253,841.37 and 500,641.91 is: 690,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,540.31 : 1,253,841.37 = 500,641.91 : x
  2. Step 2: Convert to fraction form
    908,540.31/1,253,841.37 = 500,641.91/x
  3. Step 3: Cross multiply
    908,540.31x = 1,253,841.37 × 500,641.91
  4. Step 4: Simplify right side
    908,540.31x = 627,725,538,313.82
  5. Step 5: Solve for x
    x = 627,725,538,313.82/908,540.31
  6. Step 6: Final answer
    x = 690,916.55

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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.