Home / 781,171.32-1,077,965.40-436,947.60

Finding the Fourth Proportional to 781,171.32, 1,077,965.40 and 436,947.60

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Solution

The fourth proportional to 781,171.32, 1,077,965.40 and 436,947.60 is: 602,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,171.32 : 1,077,965.40 = 436,947.60 : x
  2. Step 2: Convert to fraction form
    781,171.32/1,077,965.40 = 436,947.60/x
  3. Step 3: Cross multiply
    781,171.32x = 1,077,965.40 × 436,947.60
  4. Step 4: Simplify right side
    781,171.32x = 471,014,394,413.04
  5. Step 5: Solve for x
    x = 471,014,394,413.04/781,171.32
  6. Step 6: Final answer
    x = 602,959.15

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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.