Home / 690,898.46-1,036,347.66-269,879.09

Finding the Fourth Proportional to 690,898.46, 1,036,347.66 and 269,879.09

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Solution

The fourth proportional to 690,898.46, 1,036,347.66 and 269,879.09 is: 404,818.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,898.46 : 1,036,347.66 = 269,879.09 : x
  2. Step 2: Convert to fraction form
    690,898.46/1,036,347.66 = 269,879.09/x
  3. Step 3: Cross multiply
    690,898.46x = 1,036,347.66 × 269,879.09
  4. Step 4: Simplify right side
    690,898.46x = 279,688,558,222.69
  5. Step 5: Solve for x
    x = 279,688,558,222.69/690,898.46
  6. Step 6: Final answer
    x = 404,818.62

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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.