Home / 428,275.20-591,031.44-237,309.60

Finding the Fourth Proportional to 428,275.20, 591,031.44 and 237,309.60

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Solution

The fourth proportional to 428,275.20, 591,031.44 and 237,309.60 is: 327,493.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,275.20 : 591,031.44 = 237,309.60 : x
  2. Step 2: Convert to fraction form
    428,275.20/591,031.44 = 237,309.60/x
  3. Step 3: Cross multiply
    428,275.20x = 591,031.44 × 237,309.60
  4. Step 4: Simplify right side
    428,275.20x = 140,257,434,613.82
  5. Step 5: Solve for x
    x = 140,257,434,613.82/428,275.20
  6. Step 6: Final answer
    x = 327,493.71

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1.5x scale

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.