Home / 873,119.56-1,309,679.71-392,786.32

Finding the Fourth Proportional to 873,119.56, 1,309,679.71 and 392,786.32

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Solution

The fourth proportional to 873,119.56, 1,309,679.71 and 392,786.32 is: 589,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,119.56 : 1,309,679.71 = 392,786.32 : x
  2. Step 2: Convert to fraction form
    873,119.56/1,309,679.71 = 392,786.32/x
  3. Step 3: Cross multiply
    873,119.56x = 1,309,679.71 × 392,786.32
  4. Step 4: Simplify right side
    873,119.56x = 514,424,269,413.40
  5. Step 5: Solve for x
    x = 514,424,269,413.40/873,119.56
  6. Step 6: Final answer
    x = 589,179.64

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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.