Home / 690,256.70-1,034,769.45-269,434.70

Finding the Fourth Proportional to 690,256.70, 1,034,769.45 and 269,434.70

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Solution

The fourth proportional to 690,256.70, 1,034,769.45 and 269,434.70 is: 403,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,256.70 : 1,034,769.45 = 269,434.70 : x
  2. Step 2: Convert to fraction form
    690,256.70/1,034,769.45 = 269,434.70/x
  3. Step 3: Cross multiply
    690,256.70x = 1,034,769.45 × 269,434.70
  4. Step 4: Simplify right side
    690,256.70x = 278,802,796,329.92
  5. Step 5: Solve for x
    x = 278,802,796,329.92/690,256.70
  6. Step 6: Final answer
    x = 403,911.76

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1.5x scale

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.