Home / 770,251.20-1,155,376.80-349,540.80

Finding the Fourth Proportional to 770,251.20, 1,155,376.80 and 349,540.80

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Solution

The fourth proportional to 770,251.20, 1,155,376.80 and 349,540.80 is: 524,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,251.20 : 1,155,376.80 = 349,540.80 : x
  2. Step 2: Convert to fraction form
    770,251.20/1,155,376.80 = 349,540.80/x
  3. Step 3: Cross multiply
    770,251.20x = 1,155,376.80 × 349,540.80
  4. Step 4: Simplify right side
    770,251.20x = 403,851,330,973.44
  5. Step 5: Solve for x
    x = 403,851,330,973.44/770,251.20
  6. Step 6: Final answer
    x = 524,311.20

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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.