Home / 723,874.30-1,085,819.81-218,439.65

Finding the Fourth Proportional to 723,874.30, 1,085,819.81 and 218,439.65

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Solution

The fourth proportional to 723,874.30, 1,085,819.81 and 218,439.65 is: 327,662.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,874.30 : 1,085,819.81 = 218,439.65 : x
  2. Step 2: Convert to fraction form
    723,874.30/1,085,819.81 = 218,439.65/x
  3. Step 3: Cross multiply
    723,874.30x = 1,085,819.81 × 218,439.65
  4. Step 4: Simplify right side
    723,874.30x = 237,186,100,881.82
  5. Step 5: Solve for x
    x = 237,186,100,881.82/723,874.30
  6. Step 6: Final answer
    x = 327,662.00

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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.