Home / 915,854.20-1,373,141.30-541,684.60

Finding the Fourth Proportional to 915,854.20, 1,373,141.30 and 541,684.60

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Solution

The fourth proportional to 915,854.20, 1,373,141.30 and 541,684.60 is: 812,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,854.20 : 1,373,141.30 = 541,684.60 : x
  2. Step 2: Convert to fraction form
    915,854.20/1,373,141.30 = 541,684.60/x
  3. Step 3: Cross multiply
    915,854.20x = 1,373,141.30 × 541,684.60
  4. Step 4: Simplify right side
    915,854.20x = 743,809,495,833.98
  5. Step 5: Solve for x
    x = 743,809,495,833.98/915,854.20
  6. Step 6: Final answer
    x = 812,148.37

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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.