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Finding the Fourth Proportional to 1,226,279.52, 1,839,793.80 and 627,664.80

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Solution

The fourth proportional to 1,226,279.52, 1,839,793.80 and 627,664.80 is: 941,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,279.52 : 1,839,793.80 = 627,664.80 : x
  2. Step 2: Convert to fraction form
    1,226,279.52/1,839,793.80 = 627,664.80/x
  3. Step 3: Cross multiply
    1,226,279.52x = 1,839,793.80 × 627,664.80
  4. Step 4: Simplify right side
    1,226,279.52x = 1,154,773,807,518.24
  5. Step 5: Solve for x
    x = 1,154,773,807,518.24/1,226,279.52
  6. Step 6: Final answer
    x = 941,688.90

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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.