Home / 762,620.20-1,052,541.86-423,197.80

Finding the Fourth Proportional to 762,620.20, 1,052,541.86 and 423,197.80

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Solution

The fourth proportional to 762,620.20, 1,052,541.86 and 423,197.80 is: 584,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,620.20 : 1,052,541.86 = 423,197.80 : x
  2. Step 2: Convert to fraction form
    762,620.20/1,052,541.86 = 423,197.80/x
  3. Step 3: Cross multiply
    762,620.20x = 1,052,541.86 × 423,197.80
  4. Step 4: Simplify right side
    762,620.20x = 445,433,399,559.91
  5. Step 5: Solve for x
    x = 445,433,399,559.91/762,620.20
  6. Step 6: Final answer
    x = 584,082.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.