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Finding the Fourth Proportional to 408,099.30, 612,148.95 and 364,553.70

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Solution

The fourth proportional to 408,099.30, 612,148.95 and 364,553.70 is: 546,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,099.30 : 612,148.95 = 364,553.70 : x
  2. Step 2: Convert to fraction form
    408,099.30/612,148.95 = 364,553.70/x
  3. Step 3: Cross multiply
    408,099.30x = 612,148.95 × 364,553.70
  4. Step 4: Simplify right side
    408,099.30x = 223,161,164,673.62
  5. Step 5: Solve for x
    x = 223,161,164,673.62/408,099.30
  6. Step 6: Final answer
    x = 546,830.55

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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.