Home / 725,696.72-1,001,414.09-403,394.88

Finding the Fourth Proportional to 725,696.72, 1,001,414.09 and 403,394.88

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Solution

The fourth proportional to 725,696.72, 1,001,414.09 and 403,394.88 is: 556,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,696.72 : 1,001,414.09 = 403,394.88 : x
  2. Step 2: Convert to fraction form
    725,696.72/1,001,414.09 = 403,394.88/x
  3. Step 3: Cross multiply
    725,696.72x = 1,001,414.09 × 403,394.88
  4. Step 4: Simplify right side
    725,696.72x = 403,965,319,160.55
  5. Step 5: Solve for x
    x = 403,965,319,160.55/725,696.72
  6. Step 6: Final answer
    x = 556,658.60

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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.