Home / 690,301.20-1,034,836.20-269,479.20

Finding the Fourth Proportional to 690,301.20, 1,034,836.20 and 269,479.20

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Solution

The fourth proportional to 690,301.20, 1,034,836.20 and 269,479.20 is: 403,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,301.20 : 1,034,836.20 = 269,479.20 : x
  2. Step 2: Convert to fraction form
    690,301.20/1,034,836.20 = 269,479.20/x
  3. Step 3: Cross multiply
    690,301.20x = 1,034,836.20 × 269,479.20
  4. Step 4: Simplify right side
    690,301.20x = 278,866,831,307.04
  5. Step 5: Solve for x
    x = 278,866,831,307.04/690,301.20
  6. Step 6: Final answer
    x = 403,978.48

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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.