Home / 915,930.80-1,373,896.20-853,722.80

Finding the Fourth Proportional to 915,930.80, 1,373,896.20 and 853,722.80

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Solution

The fourth proportional to 915,930.80, 1,373,896.20 and 853,722.80 is: 1,280,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,930.80 : 1,373,896.20 = 853,722.80 : x
  2. Step 2: Convert to fraction form
    915,930.80/1,373,896.20 = 853,722.80/x
  3. Step 3: Cross multiply
    915,930.80x = 1,373,896.20 × 853,722.80
  4. Step 4: Simplify right side
    915,930.80x = 1,172,926,510,773.36
  5. Step 5: Solve for x
    x = 1,172,926,510,773.36/915,930.80
  6. Step 6: Final answer
    x = 1,280,584.20

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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.