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Finding the Fourth Proportional to 480,609.20, 663,213.92 and 265,736.40

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Solution

The fourth proportional to 480,609.20, 663,213.92 and 265,736.40 is: 366,701.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,609.20 : 663,213.92 = 265,736.40 : x
  2. Step 2: Convert to fraction form
    480,609.20/663,213.92 = 265,736.40/x
  3. Step 3: Cross multiply
    480,609.20x = 663,213.92 × 265,736.40
  4. Step 4: Simplify right side
    480,609.20x = 176,240,079,530.69
  5. Step 5: Solve for x
    x = 176,240,079,530.69/480,609.20
  6. Step 6: Final answer
    x = 366,701.43

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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.