Home / 1,143,916.40-1,577,948.78-713,449.20

Finding the Fourth Proportional to 1,143,916.40, 1,577,948.78 and 713,449.20

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Solution

The fourth proportional to 1,143,916.40, 1,577,948.78 and 713,449.20 is: 984,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,916.40 : 1,577,948.78 = 713,449.20 : x
  2. Step 2: Convert to fraction form
    1,143,916.40/1,577,948.78 = 713,449.20/x
  3. Step 3: Cross multiply
    1,143,916.40x = 1,577,948.78 × 713,449.20
  4. Step 4: Simplify right side
    1,143,916.40x = 1,125,786,294,731.98
  5. Step 5: Solve for x
    x = 1,125,786,294,731.98/1,143,916.40
  6. Step 6: Final answer
    x = 984,150.85

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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.