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Finding the Fourth Proportional to 1,244,933.20, 1,866,962.40 and 571,337.20

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Solution

The fourth proportional to 1,244,933.20, 1,866,962.40 and 571,337.20 is: 856,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,933.20 : 1,866,962.40 = 571,337.20 : x
  2. Step 2: Convert to fraction form
    1,244,933.20/1,866,962.40 = 571,337.20/x
  3. Step 3: Cross multiply
    1,244,933.20x = 1,866,962.40 × 571,337.20
  4. Step 4: Simplify right side
    1,244,933.20x = 1,066,665,070,121.28
  5. Step 5: Solve for x
    x = 1,066,665,070,121.28/1,244,933.20
  6. Step 6: Final answer
    x = 856,805.06

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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.