Home / 724,658.10-1,086,987.15-717,659.70

Finding the Fourth Proportional to 724,658.10, 1,086,987.15 and 717,659.70

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Solution

The fourth proportional to 724,658.10, 1,086,987.15 and 717,659.70 is: 1,076,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,658.10 : 1,086,987.15 = 717,659.70 : x
  2. Step 2: Convert to fraction form
    724,658.10/1,086,987.15 = 717,659.70/x
  3. Step 3: Cross multiply
    724,658.10x = 1,086,987.15 × 717,659.70
  4. Step 4: Simplify right side
    724,658.10x = 780,086,871,972.86
  5. Step 5: Solve for x
    x = 780,086,871,972.86/724,658.10
  6. Step 6: Final answer
    x = 1,076,489.55

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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.