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Finding the Fourth Proportional to 629,965.80, 944,948.70 and 619,468.20

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Solution

The fourth proportional to 629,965.80, 944,948.70 and 619,468.20 is: 929,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,965.80 : 944,948.70 = 619,468.20 : x
  2. Step 2: Convert to fraction form
    629,965.80/944,948.70 = 619,468.20/x
  3. Step 3: Cross multiply
    629,965.80x = 944,948.70 × 619,468.20
  4. Step 4: Simplify right side
    629,965.80x = 585,365,670,281.34
  5. Step 5: Solve for x
    x = 585,365,670,281.34/629,965.80
  6. Step 6: Final answer
    x = 929,202.30

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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.