Home / 690,717.20-1,036,215.92-217,292.45

Finding the Fourth Proportional to 690,717.20, 1,036,215.92 and 217,292.45

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Solution

The fourth proportional to 690,717.20, 1,036,215.92 and 217,292.45 is: 325,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,717.20 : 1,036,215.92 = 217,292.45 : x
  2. Step 2: Convert to fraction form
    690,717.20/1,036,215.92 = 217,292.45/x
  3. Step 3: Cross multiply
    690,717.20x = 1,036,215.92 × 217,292.45
  4. Step 4: Simplify right side
    690,717.20x = 225,161,891,347.96
  5. Step 5: Solve for x
    x = 225,161,891,347.96/690,717.20
  6. Step 6: Final answer
    x = 325,982.75

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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.