Home / 827,452.55-1,241,378.89-287,630.88

Finding the Fourth Proportional to 827,452.55, 1,241,378.89 and 287,630.88

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Solution

The fourth proportional to 827,452.55, 1,241,378.89 and 287,630.88 is: 431,515.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,452.55 : 1,241,378.89 = 287,630.88 : x
  2. Step 2: Convert to fraction form
    827,452.55/1,241,378.89 = 287,630.88/x
  3. Step 3: Cross multiply
    827,452.55x = 1,241,378.89 × 287,630.88
  4. Step 4: Simplify right side
    827,452.55x = 357,058,901,825.05
  5. Step 5: Solve for x
    x = 357,058,901,825.05/827,452.55
  6. Step 6: Final answer
    x = 431,515.87

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1.5x scale

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.