Home / 420,549.68-580,566.84-267,739.76

Finding the Fourth Proportional to 420,549.68, 580,566.84 and 267,739.76

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Solution

The fourth proportional to 420,549.68, 580,566.84 and 267,739.76 is: 369,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,549.68 : 580,566.84 = 267,739.76 : x
  2. Step 2: Convert to fraction form
    420,549.68/580,566.84 = 267,739.76/x
  3. Step 3: Cross multiply
    420,549.68x = 580,566.84 × 267,739.76
  4. Step 4: Simplify right side
    420,549.68x = 155,440,826,405.56
  5. Step 5: Solve for x
    x = 155,440,826,405.56/420,549.68
  6. Step 6: Final answer
    x = 369,613.47

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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.