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Finding the Fourth Proportional to 522,914.10, 784,371.15 and 491,421.30

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Solution

The fourth proportional to 522,914.10, 784,371.15 and 491,421.30 is: 737,131.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,914.10 : 784,371.15 = 491,421.30 : x
  2. Step 2: Convert to fraction form
    522,914.10/784,371.15 = 491,421.30/x
  3. Step 3: Cross multiply
    522,914.10x = 784,371.15 × 491,421.30
  4. Step 4: Simplify right side
    522,914.10x = 385,456,690,215.50
  5. Step 5: Solve for x
    x = 385,456,690,215.50/522,914.10
  6. Step 6: Final answer
    x = 737,131.95

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Half scale
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Double scale
Find fourth proportional to 522,915.10, 784,372.65 and 491,422.30
Similar ratio
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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.