Home / 3,437,787.87-4,743,869.55-1,987,576.78

Finding the Fourth Proportional to 3,437,787.87, 4,743,869.55 and 1,987,576.78

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Solution

The fourth proportional to 3,437,787.87, 4,743,869.55 and 1,987,576.78 is: 2,742,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437,787.87 : 4,743,869.55 = 1,987,576.78 : x
  2. Step 2: Convert to fraction form
    3,437,787.87/4,743,869.55 = 1,987,576.78/x
  3. Step 3: Cross multiply
    3,437,787.87x = 4,743,869.55 × 1,987,576.78
  4. Step 4: Simplify right side
    3,437,787.87x = 9,428,804,971,819.78
  5. Step 5: Solve for x
    x = 9,428,804,971,819.78/3,437,787.87
  6. Step 6: Final answer
    x = 2,742,695.40

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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.