Home / 690,254.20-1,034,765.70-269,432.20

Finding the Fourth Proportional to 690,254.20, 1,034,765.70 and 269,432.20

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Solution

The fourth proportional to 690,254.20, 1,034,765.70 and 269,432.20 is: 403,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,254.20 : 1,034,765.70 = 269,432.20 : x
  2. Step 2: Convert to fraction form
    690,254.20/1,034,765.70 = 269,432.20/x
  3. Step 3: Cross multiply
    690,254.20x = 1,034,765.70 × 269,432.20
  4. Step 4: Simplify right side
    690,254.20x = 278,799,199,035.54
  5. Step 5: Solve for x
    x = 278,799,199,035.54/690,254.20
  6. Step 6: Final answer
    x = 403,908.01

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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.