Home / 741,640.20-1,112,460.30-209,154.30

Finding the Fourth Proportional to 741,640.20, 1,112,460.30 and 209,154.30

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Solution

The fourth proportional to 741,640.20, 1,112,460.30 and 209,154.30 is: 313,731.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,640.20 : 1,112,460.30 = 209,154.30 : x
  2. Step 2: Convert to fraction form
    741,640.20/1,112,460.30 = 209,154.30/x
  3. Step 3: Cross multiply
    741,640.20x = 1,112,460.30 × 209,154.30
  4. Step 4: Simplify right side
    741,640.20x = 232,675,855,324.29
  5. Step 5: Solve for x
    x = 232,675,855,324.29/741,640.20
  6. Step 6: Final answer
    x = 313,731.45

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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.