Home / 690,302.20-1,034,837.70-269,480.20

Finding the Fourth Proportional to 690,302.20, 1,034,837.70 and 269,480.20

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Solution

The fourth proportional to 690,302.20, 1,034,837.70 and 269,480.20 is: 403,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,302.20 : 1,034,837.70 = 269,480.20 : x
  2. Step 2: Convert to fraction form
    690,302.20/1,034,837.70 = 269,480.20/x
  3. Step 3: Cross multiply
    690,302.20x = 1,034,837.70 × 269,480.20
  4. Step 4: Simplify right side
    690,302.20x = 278,868,270,363.54
  5. Step 5: Solve for x
    x = 278,868,270,363.54/690,302.20
  6. Step 6: Final answer
    x = 403,979.98

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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.