Home / 690,898.76-1,036,348.18-269,879.40

Finding the Fourth Proportional to 690,898.76, 1,036,348.18 and 269,879.40

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Solution

The fourth proportional to 690,898.76, 1,036,348.18 and 269,879.40 is: 404,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,898.76 : 1,036,348.18 = 269,879.40 : x
  2. Step 2: Convert to fraction form
    690,898.76/1,036,348.18 = 269,879.40/x
  3. Step 3: Cross multiply
    690,898.76x = 1,036,348.18 × 269,879.40
  4. Step 4: Simplify right side
    690,898.76x = 279,689,025,009.49
  5. Step 5: Solve for x
    x = 279,689,025,009.49/690,898.76
  6. Step 6: Final answer
    x = 404,819.12

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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.