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Finding the Fourth Proportional to 611,276.76, 916,793.78 and 307,589.94

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Solution

The fourth proportional to 611,276.76, 916,793.78 and 307,589.94 is: 461,323.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,276.76 : 916,793.78 = 307,589.94 : x
  2. Step 2: Convert to fraction form
    611,276.76/916,793.78 = 307,589.94/x
  3. Step 3: Cross multiply
    611,276.76x = 916,793.78 × 307,589.94
  4. Step 4: Simplify right side
    611,276.76x = 281,996,542,244.62
  5. Step 5: Solve for x
    x = 281,996,542,244.62/611,276.76
  6. Step 6: Final answer
    x = 461,323.84

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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.