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Finding the Fourth Proportional to 982,364.80, 1,472,164.80 and 727,657.60

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Solution

The fourth proportional to 982,364.80, 1,472,164.80 and 727,657.60 is: 1,090,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,364.80 : 1,472,164.80 = 727,657.60 : x
  2. Step 2: Convert to fraction form
    982,364.80/1,472,164.80 = 727,657.60/x
  3. Step 3: Cross multiply
    982,364.80x = 1,472,164.80 × 727,657.60
  4. Step 4: Simplify right side
    982,364.80x = 1,071,231,905,172.48
  5. Step 5: Solve for x
    x = 1,071,231,905,172.48/982,364.80
  6. Step 6: Final answer
    x = 1,090,462.43

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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.