Home / 690,258.20-1,034,771.70-269,436.20

Finding the Fourth Proportional to 690,258.20, 1,034,771.70 and 269,436.20

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Solution

The fourth proportional to 690,258.20, 1,034,771.70 and 269,436.20 is: 403,914.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,258.20 : 1,034,771.70 = 269,436.20 : x
  2. Step 2: Convert to fraction form
    690,258.20/1,034,771.70 = 269,436.20/x
  3. Step 3: Cross multiply
    690,258.20x = 1,034,771.70 × 269,436.20
  4. Step 4: Simplify right side
    690,258.20x = 278,804,954,715.54
  5. Step 5: Solve for x
    x = 278,804,954,715.54/690,258.20
  6. Step 6: Final answer
    x = 403,914.01

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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.