Home / 420,650.32-580,498.76-269,747.92

Finding the Fourth Proportional to 420,650.32, 580,498.76 and 269,747.92

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Solution

The fourth proportional to 420,650.32, 580,498.76 and 269,747.92 is: 372,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,650.32 : 580,498.76 = 269,747.92 : x
  2. Step 2: Convert to fraction form
    420,650.32/580,498.76 = 269,747.92/x
  3. Step 3: Cross multiply
    420,650.32x = 580,498.76 × 269,747.92
  4. Step 4: Simplify right side
    420,650.32x = 156,588,333,072.58
  5. Step 5: Solve for x
    x = 156,588,333,072.58/420,650.32
  6. Step 6: Final answer
    x = 372,252.98

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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.