Home / 690,722.70-1,036,224.18-217,297.95

Finding the Fourth Proportional to 690,722.70, 1,036,224.18 and 217,297.95

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Solution

The fourth proportional to 690,722.70, 1,036,224.18 and 217,297.95 is: 325,991.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,722.70 : 1,036,224.18 = 217,297.95 : x
  2. Step 2: Convert to fraction form
    690,722.70/1,036,224.18 = 217,297.95/x
  3. Step 3: Cross multiply
    690,722.70x = 1,036,224.18 × 217,297.95
  4. Step 4: Simplify right side
    690,722.70x = 225,169,390,054.43
  5. Step 5: Solve for x
    x = 225,169,390,054.43/690,722.70
  6. Step 6: Final answer
    x = 325,991.01

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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.