Home / 725,019.40-1,087,529.10-658,534.60

Finding the Fourth Proportional to 725,019.40, 1,087,529.10 and 658,534.60

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Solution

The fourth proportional to 725,019.40, 1,087,529.10 and 658,534.60 is: 987,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,019.40 : 1,087,529.10 = 658,534.60 : x
  2. Step 2: Convert to fraction form
    725,019.40/1,087,529.10 = 658,534.60/x
  3. Step 3: Cross multiply
    725,019.40x = 1,087,529.10 × 658,534.60
  4. Step 4: Simplify right side
    725,019.40x = 716,175,540,856.86
  5. Step 5: Solve for x
    x = 716,175,540,856.86/725,019.40
  6. Step 6: Final answer
    x = 987,801.90

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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.