Home / 753,413.49-1,039,729.37-409,249.31

Finding the Fourth Proportional to 753,413.49, 1,039,729.37 and 409,249.31

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Solution

The fourth proportional to 753,413.49, 1,039,729.37 and 409,249.31 is: 564,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,413.49 : 1,039,729.37 = 409,249.31 : x
  2. Step 2: Convert to fraction form
    753,413.49/1,039,729.37 = 409,249.31/x
  3. Step 3: Cross multiply
    753,413.49x = 1,039,729.37 × 409,249.31
  4. Step 4: Simplify right side
    753,413.49x = 425,508,525,862.82
  5. Step 5: Solve for x
    x = 425,508,525,862.82/753,413.49
  6. Step 6: Final answer
    x = 564,774.23

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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.