Home / 421,844.28-631,760.04-269,562.72

Finding the Fourth Proportional to 421,844.28, 631,760.04 and 269,562.72

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Solution

The fourth proportional to 421,844.28, 631,760.04 and 269,562.72 is: 403,700.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,844.28 : 631,760.04 = 269,562.72 : x
  2. Step 2: Convert to fraction form
    421,844.28/631,760.04 = 269,562.72/x
  3. Step 3: Cross multiply
    421,844.28x = 631,760.04 × 269,562.72
  4. Step 4: Simplify right side
    421,844.28x = 170,298,954,769.71
  5. Step 5: Solve for x
    x = 170,298,954,769.71/421,844.28
  6. Step 6: Final answer
    x = 403,700.99

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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.