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Finding the Fourth Proportional to 480,578.67, 663,142.14 and 265,705.92

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Solution

The fourth proportional to 480,578.67, 663,142.14 and 265,705.92 is: 366,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,578.67 : 663,142.14 = 265,705.92 : x
  2. Step 2: Convert to fraction form
    480,578.67/663,142.14 = 265,705.92/x
  3. Step 3: Cross multiply
    480,578.67x = 663,142.14 × 265,705.92
  4. Step 4: Simplify right side
    480,578.67x = 176,200,792,399.47
  5. Step 5: Solve for x
    x = 176,200,792,399.47/480,578.67
  6. Step 6: Final answer
    x = 366,642.97

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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.