Home / 725,266.90-1,000,808.15-398,562.73

Finding the Fourth Proportional to 725,266.90, 1,000,808.15 and 398,562.73

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Solution

The fourth proportional to 725,266.90, 1,000,808.15 and 398,562.73 is: 549,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,266.90 : 1,000,808.15 = 398,562.73 : x
  2. Step 2: Convert to fraction form
    725,266.90/1,000,808.15 = 398,562.73/x
  3. Step 3: Cross multiply
    725,266.90x = 1,000,808.15 × 398,562.73
  4. Step 4: Simplify right side
    725,266.90x = 398,884,821,473.40
  5. Step 5: Solve for x
    x = 398,884,821,473.40/725,266.90
  6. Step 6: Final answer
    x = 549,983.49

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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.