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Finding the Fourth Proportional to 982,208.80, 1,471,930.80 and 727,501.60

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Solution

The fourth proportional to 982,208.80, 1,471,930.80 and 727,501.60 is: 1,090,228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,208.80 : 1,471,930.80 = 727,501.60 : x
  2. Step 2: Convert to fraction form
    982,208.80/1,471,930.80 = 727,501.60/x
  3. Step 3: Cross multiply
    982,208.80x = 1,471,930.80 × 727,501.60
  4. Step 4: Simplify right side
    982,208.80x = 1,070,832,012,089.28
  5. Step 5: Solve for x
    x = 1,070,832,012,089.28/982,208.80
  6. Step 6: Final answer
    x = 1,090,228.49

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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.