Home / 816,119.96-1,224,178.38-217,081.76

Finding the Fourth Proportional to 816,119.96, 1,224,178.38 and 217,081.76

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Solution

The fourth proportional to 816,119.96, 1,224,178.38 and 217,081.76 is: 325,622.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,119.96 : 1,224,178.38 = 217,081.76 : x
  2. Step 2: Convert to fraction form
    816,119.96/1,224,178.38 = 217,081.76/x
  3. Step 3: Cross multiply
    816,119.96x = 1,224,178.38 × 217,081.76
  4. Step 4: Simplify right side
    816,119.96x = 265,746,791,163.46
  5. Step 5: Solve for x
    x = 265,746,791,163.46/816,119.96
  6. Step 6: Final answer
    x = 325,622.22

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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.