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Finding the Fourth Proportional to 480,574, 663,192.12 and 268,606

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Solution

The fourth proportional to 480,574, 663,192.12 and 268,606 is: 370,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,574 : 663,192.12 = 268,606 : x
  2. Step 2: Convert to fraction form
    480,574/663,192.12 = 268,606/x
  3. Step 3: Cross multiply
    480,574x = 663,192.12 × 268,606
  4. Step 4: Simplify right side
    480,574x = 178,137,382,584.72
  5. Step 5: Solve for x
    x = 178,137,382,584.72/480,574
  6. Step 6: Final answer
    x = 370,676.28

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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.