Home / 755,131.60-1,132,697.40-256,495.60

Finding the Fourth Proportional to 755,131.60, 1,132,697.40 and 256,495.60

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Solution

The fourth proportional to 755,131.60, 1,132,697.40 and 256,495.60 is: 384,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,131.60 : 1,132,697.40 = 256,495.60 : x
  2. Step 2: Convert to fraction form
    755,131.60/1,132,697.40 = 256,495.60/x
  3. Step 3: Cross multiply
    755,131.60x = 1,132,697.40 × 256,495.60
  4. Step 4: Simplify right side
    755,131.60x = 290,531,899,231.44
  5. Step 5: Solve for x
    x = 290,531,899,231.44/755,131.60
  6. Step 6: Final answer
    x = 384,743.40

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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.