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Finding the Fourth Proportional to 978,597.36, 1,350,356.40 and 548,789.04

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Solution

The fourth proportional to 978,597.36, 1,350,356.40 and 548,789.04 is: 757,268.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,597.36 : 1,350,356.40 = 548,789.04 : x
  2. Step 2: Convert to fraction form
    978,597.36/1,350,356.40 = 548,789.04/x
  3. Step 3: Cross multiply
    978,597.36x = 1,350,356.40 × 548,789.04
  4. Step 4: Simplify right side
    978,597.36x = 741,060,792,413.86
  5. Step 5: Solve for x
    x = 741,060,792,413.86/978,597.36
  6. Step 6: Final answer
    x = 757,268.33

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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.