Home / 725,177.97-1,000,746.77-402,888.43

Finding the Fourth Proportional to 725,177.97, 1,000,746.77 and 402,888.43

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Solution

The fourth proportional to 725,177.97, 1,000,746.77 and 402,888.43 is: 555,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,177.97 : 1,000,746.77 = 402,888.43 : x
  2. Step 2: Convert to fraction form
    725,177.97/1,000,746.77 = 402,888.43/x
  3. Step 3: Cross multiply
    725,177.97x = 1,000,746.77 × 402,888.43
  4. Step 4: Simplify right side
    725,177.97x = 403,189,292,978.43
  5. Step 5: Solve for x
    x = 403,189,292,978.43/725,177.97
  6. Step 6: Final answer
    x = 555,986.68

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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.