Home / 911,531.25-1,257,938.49-503,659.38

Finding the Fourth Proportional to 911,531.25, 1,257,938.49 and 503,659.38

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Solution

The fourth proportional to 911,531.25, 1,257,938.49 and 503,659.38 is: 695,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,531.25 : 1,257,938.49 = 503,659.38 : x
  2. Step 2: Convert to fraction form
    911,531.25/1,257,938.49 = 503,659.38/x
  3. Step 3: Cross multiply
    911,531.25x = 1,257,938.49 × 503,659.38
  4. Step 4: Simplify right side
    911,531.25x = 633,572,519,951.54
  5. Step 5: Solve for x
    x = 633,572,519,951.54/911,531.25
  6. Step 6: Final answer
    x = 695,063.96

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1.5x scale

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.