Home / 769,728.20-1,154,592.30-629,760.20

Finding the Fourth Proportional to 769,728.20, 1,154,592.30 and 629,760.20

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Solution

The fourth proportional to 769,728.20, 1,154,592.30 and 629,760.20 is: 944,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,728.20 : 1,154,592.30 = 629,760.20 : x
  2. Step 2: Convert to fraction form
    769,728.20/1,154,592.30 = 629,760.20/x
  3. Step 3: Cross multiply
    769,728.20x = 1,154,592.30 × 629,760.20
  4. Step 4: Simplify right side
    769,728.20x = 727,116,277,766.46
  5. Step 5: Solve for x
    x = 727,116,277,766.46/769,728.20
  6. Step 6: Final answer
    x = 944,640.30

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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.