Home / 725,145.40-1,087,863.90-607,630.60

Finding the Fourth Proportional to 725,145.40, 1,087,863.90 and 607,630.60

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Solution

The fourth proportional to 725,145.40, 1,087,863.90 and 607,630.60 is: 911,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,145.40 : 1,087,863.90 = 607,630.60 : x
  2. Step 2: Convert to fraction form
    725,145.40/1,087,863.90 = 607,630.60/x
  3. Step 3: Cross multiply
    725,145.40x = 1,087,863.90 × 607,630.60
  4. Step 4: Simplify right side
    725,145.40x = 661,019,394,275.34
  5. Step 5: Solve for x
    x = 661,019,394,275.34/725,145.40
  6. Step 6: Final answer
    x = 911,568.07

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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.