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Finding the Fourth Proportional to 978,546.96, 1,350,462.17 and 548,854.72

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Solution

The fourth proportional to 978,546.96, 1,350,462.17 and 548,854.72 is: 757,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,546.96 : 1,350,462.17 = 548,854.72 : x
  2. Step 2: Convert to fraction form
    978,546.96/1,350,462.17 = 548,854.72/x
  3. Step 3: Cross multiply
    978,546.96x = 1,350,462.17 × 548,854.72
  4. Step 4: Simplify right side
    978,546.96x = 741,207,534,181.92
  5. Step 5: Solve for x
    x = 741,207,534,181.92/978,546.96
  6. Step 6: Final answer
    x = 757,457.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.