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Finding the Fourth Proportional to 545,691.68, 753,170.68 and 366,740

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Solution

The fourth proportional to 545,691.68, 753,170.68 and 366,740 is: 506,179.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,691.68 : 753,170.68 = 366,740 : x
  2. Step 2: Convert to fraction form
    545,691.68/753,170.68 = 366,740/x
  3. Step 3: Cross multiply
    545,691.68x = 753,170.68 × 366,740
  4. Step 4: Simplify right side
    545,691.68x = 276,217,815,183.20
  5. Step 5: Solve for x
    x = 276,217,815,183.20/545,691.68
  6. Step 6: Final answer
    x = 506,179.27

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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.