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Finding the Fourth Proportional to 659,413.54, 910,039.62 and 369,054.28

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Solution

The fourth proportional to 659,413.54, 910,039.62 and 369,054.28 is: 509,322.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,413.54 : 910,039.62 = 369,054.28 : x
  2. Step 2: Convert to fraction form
    659,413.54/910,039.62 = 369,054.28/x
  3. Step 3: Cross multiply
    659,413.54x = 910,039.62 × 369,054.28
  4. Step 4: Simplify right side
    659,413.54x = 335,854,016,730.57
  5. Step 5: Solve for x
    x = 335,854,016,730.57/659,413.54
  6. Step 6: Final answer
    x = 509,322.29

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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.