Home / 723,980.70-1,085,965.65-218,540.70

Finding the Fourth Proportional to 723,980.70, 1,085,965.65 and 218,540.70

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Solution

The fourth proportional to 723,980.70, 1,085,965.65 and 218,540.70 is: 327,809.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,980.70 : 1,085,965.65 = 218,540.70 : x
  2. Step 2: Convert to fraction form
    723,980.70/1,085,965.65 = 218,540.70/x
  3. Step 3: Cross multiply
    723,980.70x = 1,085,965.65 × 218,540.70
  4. Step 4: Simplify right side
    723,980.70x = 237,327,693,326.96
  5. Step 5: Solve for x
    x = 237,327,693,326.96/723,980.70
  6. Step 6: Final answer
    x = 327,809.42

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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.