Home / 690,722.24-1,036,223.46-217,297.49

Finding the Fourth Proportional to 690,722.24, 1,036,223.46 and 217,297.49

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Solution

The fourth proportional to 690,722.24, 1,036,223.46 and 217,297.49 is: 325,990.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,722.24 : 1,036,223.46 = 217,297.49 : x
  2. Step 2: Convert to fraction form
    690,722.24/1,036,223.46 = 217,297.49/x
  3. Step 3: Cross multiply
    690,722.24x = 1,036,223.46 × 217,297.49
  4. Step 4: Simplify right side
    690,722.24x = 225,168,756,937.12
  5. Step 5: Solve for x
    x = 225,168,756,937.12/690,722.24
  6. Step 6: Final answer
    x = 325,990.31

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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.