Home / 915,865.20-1,374,006.60-284,842.80

Finding the Fourth Proportional to 915,865.20, 1,374,006.60 and 284,842.80

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Solution

The fourth proportional to 915,865.20, 1,374,006.60 and 284,842.80 is: 427,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,865.20 : 1,374,006.60 = 284,842.80 : x
  2. Step 2: Convert to fraction form
    915,865.20/1,374,006.60 = 284,842.80/x
  3. Step 3: Cross multiply
    915,865.20x = 1,374,006.60 × 284,842.80
  4. Step 4: Simplify right side
    915,865.20x = 391,375,887,162.48
  5. Step 5: Solve for x
    x = 391,375,887,162.48/915,865.20
  6. Step 6: Final answer
    x = 427,329.14

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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.