Home / 767,231.40-1,150,847.10-487,986.60

Finding the Fourth Proportional to 767,231.40, 1,150,847.10 and 487,986.60

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Solution

The fourth proportional to 767,231.40, 1,150,847.10 and 487,986.60 is: 731,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,231.40 : 1,150,847.10 = 487,986.60 : x
  2. Step 2: Convert to fraction form
    767,231.40/1,150,847.10 = 487,986.60/x
  3. Step 3: Cross multiply
    767,231.40x = 1,150,847.10 × 487,986.60
  4. Step 4: Simplify right side
    767,231.40x = 561,597,963,448.86
  5. Step 5: Solve for x
    x = 561,597,963,448.86/767,231.40
  6. Step 6: Final answer
    x = 731,979.90

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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.