Home / 1,224,210.40-1,689,413.83-680,344.52

Finding the Fourth Proportional to 1,224,210.40, 1,689,413.83 and 680,344.52

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Solution

The fourth proportional to 1,224,210.40, 1,689,413.83 and 680,344.52 is: 938,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,210.40 : 1,689,413.83 = 680,344.52 : x
  2. Step 2: Convert to fraction form
    1,224,210.40/1,689,413.83 = 680,344.52/x
  3. Step 3: Cross multiply
    1,224,210.40x = 1,689,413.83 × 680,344.52
  4. Step 4: Simplify right side
    1,224,210.40x = 1,149,383,431,104.78
  5. Step 5: Solve for x
    x = 1,149,383,431,104.78/1,224,210.40
  6. Step 6: Final answer
    x = 938,877.36

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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.