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Finding the Fourth Proportional to 629,114.40, 944,264.16 and 418,898.88

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Solution

The fourth proportional to 629,114.40, 944,264.16 and 418,898.88 is: 628,742.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,114.40 : 944,264.16 = 418,898.88 : x
  2. Step 2: Convert to fraction form
    629,114.40/944,264.16 = 418,898.88/x
  3. Step 3: Cross multiply
    629,114.40x = 944,264.16 × 418,898.88
  4. Step 4: Simplify right side
    629,114.40x = 395,551,199,048.14
  5. Step 5: Solve for x
    x = 395,551,199,048.14/629,114.40
  6. Step 6: Final answer
    x = 628,742.88

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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.