Home / 689,002.11-1,033,436.25-209,234.07

Finding the Fourth Proportional to 689,002.11, 1,033,436.25 and 209,234.07

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Solution

The fourth proportional to 689,002.11, 1,033,436.25 and 209,234.07 is: 313,830.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,002.11 : 1,033,436.25 = 209,234.07 : x
  2. Step 2: Convert to fraction form
    689,002.11/1,033,436.25 = 209,234.07/x
  3. Step 3: Cross multiply
    689,002.11x = 1,033,436.25 × 209,234.07
  4. Step 4: Simplify right side
    689,002.11x = 216,230,072,673.04
  5. Step 5: Solve for x
    x = 216,230,072,673.04/689,002.11
  6. Step 6: Final answer
    x = 313,830.78

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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.