Home / 638,233.24-880,772.16-351,749.20

Finding the Fourth Proportional to 638,233.24, 880,772.16 and 351,749.20

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Solution

The fourth proportional to 638,233.24, 880,772.16 and 351,749.20 is: 485,419.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,233.24 : 880,772.16 = 351,749.20 : x
  2. Step 2: Convert to fraction form
    638,233.24/880,772.16 = 351,749.20/x
  3. Step 3: Cross multiply
    638,233.24x = 880,772.16 × 351,749.20
  4. Step 4: Simplify right side
    638,233.24x = 309,810,902,662.27
  5. Step 5: Solve for x
    x = 309,810,902,662.27/638,233.24
  6. Step 6: Final answer
    x = 485,419.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.