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Finding the Fourth Proportional to 613,793.08, 919,688.46 and 376,634.80

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Solution

The fourth proportional to 613,793.08, 919,688.46 and 376,634.80 is: 564,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,793.08 : 919,688.46 = 376,634.80 : x
  2. Step 2: Convert to fraction form
    613,793.08/919,688.46 = 376,634.80/x
  3. Step 3: Cross multiply
    613,793.08x = 919,688.46 × 376,634.80
  4. Step 4: Simplify right side
    613,793.08x = 346,386,679,194.41
  5. Step 5: Solve for x
    x = 346,386,679,194.41/613,793.08
  6. Step 6: Final answer
    x = 564,337.87

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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.