Home / 725,432.88-1,001,077.38-403,134.78

Finding the Fourth Proportional to 725,432.88, 1,001,077.38 and 403,134.78

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Solution

The fourth proportional to 725,432.88, 1,001,077.38 and 403,134.78 is: 556,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,432.88 : 1,001,077.38 = 403,134.78 : x
  2. Step 2: Convert to fraction form
    725,432.88/1,001,077.38 = 403,134.78/x
  3. Step 3: Cross multiply
    725,432.88x = 1,001,077.38 × 403,134.78
  4. Step 4: Simplify right side
    725,432.88x = 403,569,109,349.28
  5. Step 5: Solve for x
    x = 403,569,109,349.28/725,432.88
  6. Step 6: Final answer
    x = 556,314.89

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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.