Home / 769,514.80-1,154,272.20-208,549.30

Finding the Fourth Proportional to 769,514.80, 1,154,272.20 and 208,549.30

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Solution

The fourth proportional to 769,514.80, 1,154,272.20 and 208,549.30 is: 312,823.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,514.80 : 1,154,272.20 = 208,549.30 : x
  2. Step 2: Convert to fraction form
    769,514.80/1,154,272.20 = 208,549.30/x
  3. Step 3: Cross multiply
    769,514.80x = 1,154,272.20 × 208,549.30
  4. Step 4: Simplify right side
    769,514.80x = 240,722,659,319.46
  5. Step 5: Solve for x
    x = 240,722,659,319.46/769,514.80
  6. Step 6: Final answer
    x = 312,823.95

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Similar ratio
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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.