Home / 842,540.10-1,266,434.55-826,793.70

Finding the Fourth Proportional to 842,540.10, 1,266,434.55 and 826,793.70

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Solution

The fourth proportional to 842,540.10, 1,266,434.55 and 826,793.70 is: 1,242,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,540.10 : 1,266,434.55 = 826,793.70 : x
  2. Step 2: Convert to fraction form
    842,540.10/1,266,434.55 = 826,793.70/x
  3. Step 3: Cross multiply
    842,540.10x = 1,266,434.55 × 826,793.70
  4. Step 4: Simplify right side
    842,540.10x = 1,047,080,107,402.34
  5. Step 5: Solve for x
    x = 1,047,080,107,402.34/842,540.10
  6. Step 6: Final answer
    x = 1,242,765.90

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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.