Home / 725,735.28-1,001,521.92-399,065.52

Finding the Fourth Proportional to 725,735.28, 1,001,521.92 and 399,065.52

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Solution

The fourth proportional to 725,735.28, 1,001,521.92 and 399,065.52 is: 550,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,735.28 : 1,001,521.92 = 399,065.52 : x
  2. Step 2: Convert to fraction form
    725,735.28/1,001,521.92 = 399,065.52/x
  3. Step 3: Cross multiply
    725,735.28x = 1,001,521.92 × 399,065.52
  4. Step 4: Simplify right side
    725,735.28x = 399,672,865,796.20
  5. Step 5: Solve for x
    x = 399,672,865,796.20/725,735.28
  6. Step 6: Final answer
    x = 550,714.40

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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.