Home / 3,138,900.02-4,331,382.78-1,761,928.40

Finding the Fourth Proportional to 3,138,900.02, 4,331,382.78 and 1,761,928.40

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Solution

The fourth proportional to 3,138,900.02, 4,331,382.78 and 1,761,928.40 is: 2,431,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138,900.02 : 4,331,382.78 = 1,761,928.40 : x
  2. Step 2: Convert to fraction form
    3,138,900.02/4,331,382.78 = 1,761,928.40/x
  3. Step 3: Cross multiply
    3,138,900.02x = 4,331,382.78 × 1,761,928.40
  4. Step 4: Simplify right side
    3,138,900.02x = 7,631,586,331,352.95
  5. Step 5: Solve for x
    x = 7,631,586,331,352.95/3,138,900.02
  6. Step 6: Final answer
    x = 2,431,293.22

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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.