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Finding the Fourth Proportional to 609,349.68, 914,884.56 and 383,979.60

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Solution

The fourth proportional to 609,349.68, 914,884.56 and 383,979.60 is: 576,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,349.68 : 914,884.56 = 383,979.60 : x
  2. Step 2: Convert to fraction form
    609,349.68/914,884.56 = 383,979.60/x
  3. Step 3: Cross multiply
    609,349.68x = 914,884.56 × 383,979.60
  4. Step 4: Simplify right side
    609,349.68x = 351,297,007,394.98
  5. Step 5: Solve for x
    x = 351,297,007,394.98/609,349.68
  6. Step 6: Final answer
    x = 576,511.35

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1.5x scale

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.