Home / 1,205,438.14-1,808,747.25-485,749.90

Finding the Fourth Proportional to 1,205,438.14, 1,808,747.25 and 485,749.90

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Solution

The fourth proportional to 1,205,438.14, 1,808,747.25 and 485,749.90 is: 728,862.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,438.14 : 1,808,747.25 = 485,749.90 : x
  2. Step 2: Convert to fraction form
    1,205,438.14/1,808,747.25 = 485,749.90/x
  3. Step 3: Cross multiply
    1,205,438.14x = 1,808,747.25 × 485,749.90
  4. Step 4: Simplify right side
    1,205,438.14x = 878,598,795,812.78
  5. Step 5: Solve for x
    x = 878,598,795,812.78/1,205,438.14
  6. Step 6: Final answer
    x = 728,862.62

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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.