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Finding the Fourth Proportional to 343,628.60, 514,568.10 and 327,882.20

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Solution

The fourth proportional to 343,628.60, 514,568.10 and 327,882.20 is: 490,988.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,628.60 : 514,568.10 = 327,882.20 : x
  2. Step 2: Convert to fraction form
    343,628.60/514,568.10 = 327,882.20/x
  3. Step 3: Cross multiply
    343,628.60x = 514,568.10 × 327,882.20
  4. Step 4: Simplify right side
    343,628.60x = 168,717,720,677.82
  5. Step 5: Solve for x
    x = 168,717,720,677.82/343,628.60
  6. Step 6: Final answer
    x = 490,988.59

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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.