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Finding the Fourth Proportional to 978,101.67, 1,467,363.65 and 304,169.79

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Solution

The fourth proportional to 978,101.67, 1,467,363.65 and 304,169.79 is: 456,320.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,101.67 : 1,467,363.65 = 304,169.79 : x
  2. Step 2: Convert to fraction form
    978,101.67/1,467,363.65 = 304,169.79/x
  3. Step 3: Cross multiply
    978,101.67x = 1,467,363.65 × 304,169.79
  4. Step 4: Simplify right side
    978,101.67x = 446,327,691,753.29
  5. Step 5: Solve for x
    x = 446,327,691,753.29/978,101.67
  6. Step 6: Final answer
    x = 456,320.35

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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.