Home / 747,787.55-1,121,287.61-511,197.89

Finding the Fourth Proportional to 747,787.55, 1,121,287.61 and 511,197.89

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Solution

The fourth proportional to 747,787.55, 1,121,287.61 and 511,197.89 is: 766,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,787.55 : 1,121,287.61 = 511,197.89 : x
  2. Step 2: Convert to fraction form
    747,787.55/1,121,287.61 = 511,197.89/x
  3. Step 3: Cross multiply
    747,787.55x = 1,121,287.61 × 511,197.89
  4. Step 4: Simplify right side
    747,787.55x = 573,199,853,111.21
  5. Step 5: Solve for x
    x = 573,199,853,111.21/747,787.55
  6. Step 6: Final answer
    x = 766,527.68

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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.