Home / 743,451.30-1,115,219.43-210,930.30

Finding the Fourth Proportional to 743,451.30, 1,115,219.43 and 210,930.30

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Solution

The fourth proportional to 743,451.30, 1,115,219.43 and 210,930.30 is: 316,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,451.30 : 1,115,219.43 = 210,930.30 : x
  2. Step 2: Convert to fraction form
    743,451.30/1,115,219.43 = 210,930.30/x
  3. Step 3: Cross multiply
    743,451.30x = 1,115,219.43 × 210,930.30
  4. Step 4: Simplify right side
    743,451.30x = 235,233,568,935.73
  5. Step 5: Solve for x
    x = 235,233,568,935.73/743,451.30
  6. Step 6: Final answer
    x = 316,407.50

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Double scale
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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.