Home / 769,126.80-1,153,690.20-325,837.20

Finding the Fourth Proportional to 769,126.80, 1,153,690.20 and 325,837.20

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Solution

The fourth proportional to 769,126.80, 1,153,690.20 and 325,837.20 is: 488,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,126.80 : 1,153,690.20 = 325,837.20 : x
  2. Step 2: Convert to fraction form
    769,126.80/1,153,690.20 = 325,837.20/x
  3. Step 3: Cross multiply
    769,126.80x = 1,153,690.20 × 325,837.20
  4. Step 4: Simplify right side
    769,126.80x = 375,915,184,435.44
  5. Step 5: Solve for x
    x = 375,915,184,435.44/769,126.80
  6. Step 6: Final answer
    x = 488,755.80

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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.