Home / 690,723.20-1,036,224.92-217,298.45

Finding the Fourth Proportional to 690,723.20, 1,036,224.92 and 217,298.45

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Solution

The fourth proportional to 690,723.20, 1,036,224.92 and 217,298.45 is: 325,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,723.20 : 1,036,224.92 = 217,298.45 : x
  2. Step 2: Convert to fraction form
    690,723.20/1,036,224.92 = 217,298.45/x
  3. Step 3: Cross multiply
    690,723.20x = 1,036,224.92 × 217,298.45
  4. Step 4: Simplify right side
    690,723.20x = 225,170,068,967.37
  5. Step 5: Solve for x
    x = 225,170,068,967.37/690,723.20
  6. Step 6: Final answer
    x = 325,991.76

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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.