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Finding the Fourth Proportional to 937,676, 1,406,747.28 and 272,828

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Solution

The fourth proportional to 937,676, 1,406,747.28 and 272,828 is: 409,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    937,676 : 1,406,747.28 = 272,828 : x
  2. Step 2: Convert to fraction form
    937,676/1,406,747.28 = 272,828/x
  3. Step 3: Cross multiply
    937,676x = 1,406,747.28 × 272,828
  4. Step 4: Simplify right side
    937,676x = 383,800,046,907.84
  5. Step 5: Solve for x
    x = 383,800,046,907.84/937,676
  6. Step 6: Final answer
    x = 409,309.88

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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.