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Finding the Fourth Proportional to 627,655.80, 940,101.30 and 544,711.80

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Solution

The fourth proportional to 627,655.80, 940,101.30 and 544,711.80 is: 815,867.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,655.80 : 940,101.30 = 544,711.80 : x
  2. Step 2: Convert to fraction form
    627,655.80/940,101.30 = 544,711.80/x
  3. Step 3: Cross multiply
    627,655.80x = 940,101.30 × 544,711.80
  4. Step 4: Simplify right side
    627,655.80x = 512,084,271,305.34
  5. Step 5: Solve for x
    x = 512,084,271,305.34/627,655.80
  6. Step 6: Final answer
    x = 815,867.98

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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.