Home / 420,633.14-580,540.38-267,511.69

Finding the Fourth Proportional to 420,633.14, 580,540.38 and 267,511.69

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Solution

The fourth proportional to 420,633.14, 580,540.38 and 267,511.69 is: 369,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,633.14 : 580,540.38 = 267,511.69 : x
  2. Step 2: Convert to fraction form
    420,633.14/580,540.38 = 267,511.69/x
  3. Step 3: Cross multiply
    420,633.14x = 580,540.38 × 267,511.69
  4. Step 4: Simplify right side
    420,633.14x = 155,301,335,264.34
  5. Step 5: Solve for x
    x = 155,301,335,264.34/420,633.14
  6. Step 6: Final answer
    x = 369,208.51

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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.