Home / 723,869.11-1,085,776.37-218,416.61

Finding the Fourth Proportional to 723,869.11, 1,085,776.37 and 218,416.61

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Solution

The fourth proportional to 723,869.11, 1,085,776.37 and 218,416.61 is: 327,616.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,869.11 : 1,085,776.37 = 218,416.61 : x
  2. Step 2: Convert to fraction form
    723,869.11/1,085,776.37 = 218,416.61/x
  3. Step 3: Cross multiply
    723,869.11x = 1,085,776.37 × 218,416.61
  4. Step 4: Simplify right side
    723,869.11x = 237,151,589,877.90
  5. Step 5: Solve for x
    x = 237,151,589,877.90/723,869.11
  6. Step 6: Final answer
    x = 327,616.67

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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.