Home / 766,972.40-1,150,458.60-487,727.60

Finding the Fourth Proportional to 766,972.40, 1,150,458.60 and 487,727.60

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Solution

The fourth proportional to 766,972.40, 1,150,458.60 and 487,727.60 is: 731,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,972.40 : 1,150,458.60 = 487,727.60 : x
  2. Step 2: Convert to fraction form
    766,972.40/1,150,458.60 = 487,727.60/x
  3. Step 3: Cross multiply
    766,972.40x = 1,150,458.60 × 487,727.60
  4. Step 4: Simplify right side
    766,972.40x = 561,110,411,877.36
  5. Step 5: Solve for x
    x = 561,110,411,877.36/766,972.40
  6. Step 6: Final answer
    x = 731,591.40

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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.