Home / 743,540.65-1,115,308.73-211,062.13

Finding the Fourth Proportional to 743,540.65, 1,115,308.73 and 211,062.13

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Solution

The fourth proportional to 743,540.65, 1,115,308.73 and 211,062.13 is: 316,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,540.65 : 1,115,308.73 = 211,062.13 : x
  2. Step 2: Convert to fraction form
    743,540.65/1,115,308.73 = 211,062.13/x
  3. Step 3: Cross multiply
    743,540.65x = 1,115,308.73 × 211,062.13
  4. Step 4: Simplify right side
    743,540.65x = 235,399,436,161.40
  5. Step 5: Solve for x
    x = 235,399,436,161.40/743,540.65
  6. Step 6: Final answer
    x = 316,592.56

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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.