Home / 766,085.76-1,149,207.12-293,168.88

Finding the Fourth Proportional to 766,085.76, 1,149,207.12 and 293,168.88

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Solution

The fourth proportional to 766,085.76, 1,149,207.12 and 293,168.88 is: 439,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,085.76 : 1,149,207.12 = 293,168.88 : x
  2. Step 2: Convert to fraction form
    766,085.76/1,149,207.12 = 293,168.88/x
  3. Step 3: Cross multiply
    766,085.76x = 1,149,207.12 × 293,168.88
  4. Step 4: Simplify right side
    766,085.76x = 336,911,764,258.43
  5. Step 5: Solve for x
    x = 336,911,764,258.43/766,085.76
  6. Step 6: Final answer
    x = 439,783.35

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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.