Home / 915,903.20-1,373,214.80-541,733.60

Finding the Fourth Proportional to 915,903.20, 1,373,214.80 and 541,733.60

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Solution

The fourth proportional to 915,903.20, 1,373,214.80 and 541,733.60 is: 812,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,903.20 : 1,373,214.80 = 541,733.60 : x
  2. Step 2: Convert to fraction form
    915,903.20/1,373,214.80 = 541,733.60/x
  3. Step 3: Cross multiply
    915,903.20x = 1,373,214.80 × 541,733.60
  4. Step 4: Simplify right side
    915,903.20x = 743,916,597,177.28
  5. Step 5: Solve for x
    x = 743,916,597,177.28/915,903.20
  6. Step 6: Final answer
    x = 812,221.86

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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.