Home / 2,761,413.12-4,142,356.20-842,756.40

Finding the Fourth Proportional to 2,761,413.12, 4,142,356.20 and 842,756.40

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Solution

The fourth proportional to 2,761,413.12, 4,142,356.20 and 842,756.40 is: 1,264,206.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761,413.12 : 4,142,356.20 = 842,756.40 : x
  2. Step 2: Convert to fraction form
    2,761,413.12/4,142,356.20 = 842,756.40/x
  3. Step 3: Cross multiply
    2,761,413.12x = 4,142,356.20 × 842,756.40
  4. Step 4: Simplify right side
    2,761,413.12x = 3,490,997,198,629.68
  5. Step 5: Solve for x
    x = 3,490,997,198,629.68/2,761,413.12
  6. Step 6: Final answer
    x = 1,264,206.78

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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.