Home / 725,691.56-1,001,585.25-419,725.40

Finding the Fourth Proportional to 725,691.56, 1,001,585.25 and 419,725.40

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Solution

The fourth proportional to 725,691.56, 1,001,585.25 and 419,725.40 is: 579,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,691.56 : 1,001,585.25 = 419,725.40 : x
  2. Step 2: Convert to fraction form
    725,691.56/1,001,585.25 = 419,725.40/x
  3. Step 3: Cross multiply
    725,691.56x = 1,001,585.25 × 419,725.40
  4. Step 4: Simplify right side
    725,691.56x = 420,390,764,682.42
  5. Step 5: Solve for x
    x = 420,390,764,682.42/725,691.56
  6. Step 6: Final answer
    x = 579,296.76

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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.