Home / 1,040,413.60-1,557,957.12-720,122.59

Finding the Fourth Proportional to 1,040,413.60, 1,557,957.12 and 720,122.59

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Solution

The fourth proportional to 1,040,413.60, 1,557,957.12 and 720,122.59 is: 1,078,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,413.60 : 1,557,957.12 = 720,122.59 : x
  2. Step 2: Convert to fraction form
    1,040,413.60/1,557,957.12 = 720,122.59/x
  3. Step 3: Cross multiply
    1,040,413.60x = 1,557,957.12 × 720,122.59
  4. Step 4: Simplify right side
    1,040,413.60x = 1,121,920,116,363.34
  5. Step 5: Solve for x
    x = 1,121,920,116,363.34/1,040,413.60
  6. Step 6: Final answer
    x = 1,078,340.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.