Home / 1,106,400.78-1,659,776.40-396,413.10

Finding the Fourth Proportional to 1,106,400.78, 1,659,776.40 and 396,413.10

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Solution

The fourth proportional to 1,106,400.78, 1,659,776.40 and 396,413.10 is: 594,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,400.78 : 1,659,776.40 = 396,413.10 : x
  2. Step 2: Convert to fraction form
    1,106,400.78/1,659,776.40 = 396,413.10/x
  3. Step 3: Cross multiply
    1,106,400.78x = 1,659,776.40 × 396,413.10
  4. Step 4: Simplify right side
    1,106,400.78x = 657,957,108,030.84
  5. Step 5: Solve for x
    x = 657,957,108,030.84/1,106,400.78
  6. Step 6: Final answer
    x = 594,682.43

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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.