Home / 753,138.20-1,129,707.30-254,502.20

Finding the Fourth Proportional to 753,138.20, 1,129,707.30 and 254,502.20

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Solution

The fourth proportional to 753,138.20, 1,129,707.30 and 254,502.20 is: 381,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,138.20 : 1,129,707.30 = 254,502.20 : x
  2. Step 2: Convert to fraction form
    753,138.20/1,129,707.30 = 254,502.20/x
  3. Step 3: Cross multiply
    753,138.20x = 1,129,707.30 × 254,502.20
  4. Step 4: Simplify right side
    753,138.20x = 287,512,993,206.06
  5. Step 5: Solve for x
    x = 287,512,993,206.06/753,138.20
  6. Step 6: Final answer
    x = 381,753.30

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Double scale
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Similar ratio
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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.