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Finding the Fourth Proportional to 577,942.20, 866,913.30 and 484,630.20

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Solution

The fourth proportional to 577,942.20, 866,913.30 and 484,630.20 is: 726,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,942.20 : 866,913.30 = 484,630.20 : x
  2. Step 2: Convert to fraction form
    577,942.20/866,913.30 = 484,630.20/x
  3. Step 3: Cross multiply
    577,942.20x = 866,913.30 × 484,630.20
  4. Step 4: Simplify right side
    577,942.20x = 420,132,365,961.66
  5. Step 5: Solve for x
    x = 420,132,365,961.66/577,942.20
  6. Step 6: Final answer
    x = 726,945.30

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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.