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Finding the Fourth Proportional to 577,740.42, 866,435.67 and 156,961.62

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Solution

The fourth proportional to 577,740.42, 866,435.67 and 156,961.62 is: 235,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,740.42 : 866,435.67 = 156,961.62 : x
  2. Step 2: Convert to fraction form
    577,740.42/866,435.67 = 156,961.62/x
  3. Step 3: Cross multiply
    577,740.42x = 866,435.67 × 156,961.62
  4. Step 4: Simplify right side
    577,740.42x = 135,997,146,388.99
  5. Step 5: Solve for x
    x = 135,997,146,388.99/577,740.42
  6. Step 6: Final answer
    x = 235,394.90

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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.