Home / 309,410.28-464,115.78-84,772.62

Finding the Fourth Proportional to 309,410.28, 464,115.78 and 84,772.62

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Solution

The fourth proportional to 309,410.28, 464,115.78 and 84,772.62 is: 127,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,410.28 : 464,115.78 = 84,772.62 : x
  2. Step 2: Convert to fraction form
    309,410.28/464,115.78 = 84,772.62/x
  3. Step 3: Cross multiply
    309,410.28x = 464,115.78 × 84,772.62
  4. Step 4: Simplify right side
    309,410.28x = 39,344,310,653.94
  5. Step 5: Solve for x
    x = 39,344,310,653.94/309,410.28
  6. Step 6: Final answer
    x = 127,159.03

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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.