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Finding the Fourth Proportional to 484,806, 727,287.78 and 143,284.08

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Solution

The fourth proportional to 484,806, 727,287.78 and 143,284.08 is: 214,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,806 : 727,287.78 = 143,284.08 : x
  2. Step 2: Convert to fraction form
    484,806/727,287.78 = 143,284.08/x
  3. Step 3: Cross multiply
    484,806x = 727,287.78 × 143,284.08
  4. Step 4: Simplify right side
    484,806x = 104,208,760,452.54
  5. Step 5: Solve for x
    x = 104,208,760,452.54/484,806
  6. Step 6: Final answer
    x = 214,949.40

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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.