Home / 1,231,428.90-1,846,159.20-520,872.60

Finding the Fourth Proportional to 1,231,428.90, 1,846,159.20 and 520,872.60

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Solution

The fourth proportional to 1,231,428.90, 1,846,159.20 and 520,872.60 is: 780,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,428.90 : 1,846,159.20 = 520,872.60 : x
  2. Step 2: Convert to fraction form
    1,231,428.90/1,846,159.20 = 520,872.60/x
  3. Step 3: Cross multiply
    1,231,428.90x = 1,846,159.20 × 520,872.60
  4. Step 4: Simplify right side
    1,231,428.90x = 961,613,742,517.92
  5. Step 5: Solve for x
    x = 961,613,742,517.92/1,231,428.90
  6. Step 6: Final answer
    x = 780,892.62

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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.