Home / 785,990.72-1,179,278.02-545,978.18

Finding the Fourth Proportional to 785,990.72, 1,179,278.02 and 545,978.18

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Solution

The fourth proportional to 785,990.72, 1,179,278.02 and 545,978.18 is: 819,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,990.72 : 1,179,278.02 = 545,978.18 : x
  2. Step 2: Convert to fraction form
    785,990.72/1,179,278.02 = 545,978.18/x
  3. Step 3: Cross multiply
    785,990.72x = 1,179,278.02 × 545,978.18
  4. Step 4: Simplify right side
    785,990.72x = 643,860,061,177.21
  5. Step 5: Solve for x
    x = 643,860,061,177.21/785,990.72
  6. Step 6: Final answer
    x = 819,170.06

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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.