Home / 1,188,746.51-1,640,470.19-679,459.82

Finding the Fourth Proportional to 1,188,746.51, 1,640,470.19 and 679,459.82

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Solution

The fourth proportional to 1,188,746.51, 1,640,470.19 and 679,459.82 is: 937,654.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,746.51 : 1,640,470.19 = 679,459.82 : x
  2. Step 2: Convert to fraction form
    1,188,746.51/1,640,470.19 = 679,459.82/x
  3. Step 3: Cross multiply
    1,188,746.51x = 1,640,470.19 × 679,459.82
  4. Step 4: Simplify right side
    1,188,746.51x = 1,114,633,568,413.12
  5. Step 5: Solve for x
    x = 1,114,633,568,413.12/1,188,746.51
  6. Step 6: Final answer
    x = 937,654.55

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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.