Home / 725,407.74-1,088,952.29-389,105.26

Finding the Fourth Proportional to 725,407.74, 1,088,952.29 and 389,105.26

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Solution

The fourth proportional to 725,407.74, 1,088,952.29 and 389,105.26 is: 584,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,407.74 : 1,088,952.29 = 389,105.26 : x
  2. Step 2: Convert to fraction form
    725,407.74/1,088,952.29 = 389,105.26/x
  3. Step 3: Cross multiply
    725,407.74x = 1,088,952.29 × 389,105.26
  4. Step 4: Simplify right side
    725,407.74x = 423,717,059,260.14
  5. Step 5: Solve for x
    x = 423,717,059,260.14/725,407.74
  6. Step 6: Final answer
    x = 584,108.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.