Home / 612,612.86-918,976.92-180,330.61

Finding the Fourth Proportional to 612,612.86, 918,976.92 and 180,330.61

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Solution

The fourth proportional to 612,612.86, 918,976.92 and 180,330.61 is: 270,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,612.86 : 918,976.92 = 180,330.61 : x
  2. Step 2: Convert to fraction form
    612,612.86/918,976.92 = 180,330.61/x
  3. Step 3: Cross multiply
    612,612.86x = 918,976.92 × 180,330.61
  4. Step 4: Simplify right side
    612,612.86x = 165,719,665,104.68
  5. Step 5: Solve for x
    x = 165,719,665,104.68/612,612.86
  6. Step 6: Final answer
    x = 270,512.87

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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.