Home / 755,275.56-1,132,913.28-256,639.56

Finding the Fourth Proportional to 755,275.56, 1,132,913.28 and 256,639.56

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Solution

The fourth proportional to 755,275.56, 1,132,913.28 and 256,639.56 is: 384,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,275.56 : 1,132,913.28 = 256,639.56 : x
  2. Step 2: Convert to fraction form
    755,275.56/1,132,913.28 = 256,639.56/x
  3. Step 3: Cross multiply
    755,275.56x = 1,132,913.28 × 256,639.56
  4. Step 4: Simplify right side
    755,275.56x = 290,750,365,697.36
  5. Step 5: Solve for x
    x = 290,750,365,697.36/755,275.56
  6. Step 6: Final answer
    x = 384,959.32

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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.