Home / 2,138,947.38-3,208,386.65-519,729.03

Finding the Fourth Proportional to 2,138,947.38, 3,208,386.65 and 519,729.03

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Solution

The fourth proportional to 2,138,947.38, 3,208,386.65 and 519,729.03 is: 779,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,947.38 : 3,208,386.65 = 519,729.03 : x
  2. Step 2: Convert to fraction form
    2,138,947.38/3,208,386.65 = 519,729.03/x
  3. Step 3: Cross multiply
    2,138,947.38x = 3,208,386.65 × 519,729.03
  4. Step 4: Simplify right side
    2,138,947.38x = 1,667,491,678,870.80
  5. Step 5: Solve for x
    x = 1,667,491,678,870.80/2,138,947.38
  6. Step 6: Final answer
    x = 779,585.18

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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.