Home / 664,045.20-994,512.60-505,414.80

Finding the Fourth Proportional to 664,045.20, 994,512.60 and 505,414.80

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Solution

The fourth proportional to 664,045.20, 994,512.60 and 505,414.80 is: 756,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,045.20 : 994,512.60 = 505,414.80 : x
  2. Step 2: Convert to fraction form
    664,045.20/994,512.60 = 505,414.80/x
  3. Step 3: Cross multiply
    664,045.20x = 994,512.60 × 505,414.80
  4. Step 4: Simplify right side
    664,045.20x = 502,641,386,826.48
  5. Step 5: Solve for x
    x = 502,641,386,826.48/664,045.20
  6. Step 6: Final answer
    x = 756,938.51

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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.