Home / 725,400.90-1,088,101.35-618,092.10

Finding the Fourth Proportional to 725,400.90, 1,088,101.35 and 618,092.10

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Solution

The fourth proportional to 725,400.90, 1,088,101.35 and 618,092.10 is: 927,138.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,400.90 : 1,088,101.35 = 618,092.10 : x
  2. Step 2: Convert to fraction form
    725,400.90/1,088,101.35 = 618,092.10/x
  3. Step 3: Cross multiply
    725,400.90x = 1,088,101.35 × 618,092.10
  4. Step 4: Simplify right side
    725,400.90x = 672,546,848,434.34
  5. Step 5: Solve for x
    x = 672,546,848,434.34/725,400.90
  6. Step 6: Final answer
    x = 927,138.15

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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.