Home / 770,734.20-1,156,101.30-209,767.80

Finding the Fourth Proportional to 770,734.20, 1,156,101.30 and 209,767.80

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Solution

The fourth proportional to 770,734.20, 1,156,101.30 and 209,767.80 is: 314,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,734.20 : 1,156,101.30 = 209,767.80 : x
  2. Step 2: Convert to fraction form
    770,734.20/1,156,101.30 = 209,767.80/x
  3. Step 3: Cross multiply
    770,734.20x = 1,156,101.30 × 209,767.80
  4. Step 4: Simplify right side
    770,734.20x = 242,512,826,278.14
  5. Step 5: Solve for x
    x = 242,512,826,278.14/770,734.20
  6. Step 6: Final answer
    x = 314,651.70

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Double scale
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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.