Home / 690,278.20-1,034,801.70-269,456.20

Finding the Fourth Proportional to 690,278.20, 1,034,801.70 and 269,456.20

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Solution

The fourth proportional to 690,278.20, 1,034,801.70 and 269,456.20 is: 403,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,278.20 : 1,034,801.70 = 269,456.20 : x
  2. Step 2: Convert to fraction form
    690,278.20/1,034,801.70 = 269,456.20/x
  3. Step 3: Cross multiply
    690,278.20x = 1,034,801.70 × 269,456.20
  4. Step 4: Simplify right side
    690,278.20x = 278,833,733,835.54
  5. Step 5: Solve for x
    x = 278,833,733,835.54/690,278.20
  6. Step 6: Final answer
    x = 403,944.00

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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.