Home / 1,120,143.94-1,545,915.27-690,413.02

Finding the Fourth Proportional to 1,120,143.94, 1,545,915.27 and 690,413.02

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Solution

The fourth proportional to 1,120,143.94, 1,545,915.27 and 690,413.02 is: 952,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,143.94 : 1,545,915.27 = 690,413.02 : x
  2. Step 2: Convert to fraction form
    1,120,143.94/1,545,915.27 = 690,413.02/x
  3. Step 3: Cross multiply
    1,120,143.94x = 1,545,915.27 × 690,413.02
  4. Step 4: Simplify right side
    1,120,143.94x = 1,067,320,028,949.08
  5. Step 5: Solve for x
    x = 1,067,320,028,949.08/1,120,143.94
  6. Step 6: Final answer
    x = 952,841.86

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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.