Home / 755,455.20-1,133,182.80-256,819.20

Finding the Fourth Proportional to 755,455.20, 1,133,182.80 and 256,819.20

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Solution

The fourth proportional to 755,455.20, 1,133,182.80 and 256,819.20 is: 385,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,455.20 : 1,133,182.80 = 256,819.20 : x
  2. Step 2: Convert to fraction form
    755,455.20/1,133,182.80 = 256,819.20/x
  3. Step 3: Cross multiply
    755,455.20x = 1,133,182.80 × 256,819.20
  4. Step 4: Simplify right side
    755,455.20x = 291,023,100,149.76
  5. Step 5: Solve for x
    x = 291,023,100,149.76/755,455.20
  6. Step 6: Final answer
    x = 385,228.80

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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.