Home / 743,155.32-1,114,732.97-210,680.97

Finding the Fourth Proportional to 743,155.32, 1,114,732.97 and 210,680.97

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Solution

The fourth proportional to 743,155.32, 1,114,732.97 and 210,680.97 is: 316,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,155.32 : 1,114,732.97 = 210,680.97 : x
  2. Step 2: Convert to fraction form
    743,155.32/1,114,732.97 = 210,680.97/x
  3. Step 3: Cross multiply
    743,155.32x = 1,114,732.97 × 210,680.97
  4. Step 4: Simplify right side
    743,155.32x = 234,853,023,410.58
  5. Step 5: Solve for x
    x = 234,853,023,410.58/743,155.32
  6. Step 6: Final answer
    x = 316,021.45

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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.