Home / 1,311,132.64-1,966,696.22-412,652.90

Finding the Fourth Proportional to 1,311,132.64, 1,966,696.22 and 412,652.90

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Solution

The fourth proportional to 1,311,132.64, 1,966,696.22 and 412,652.90 is: 618,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,132.64 : 1,966,696.22 = 412,652.90 : x
  2. Step 2: Convert to fraction form
    1,311,132.64/1,966,696.22 = 412,652.90/x
  3. Step 3: Cross multiply
    1,311,132.64x = 1,966,696.22 × 412,652.90
  4. Step 4: Simplify right side
    1,311,132.64x = 811,562,891,166.57
  5. Step 5: Solve for x
    x = 811,562,891,166.57/1,311,132.64
  6. Step 6: Final answer
    x = 618,978.48

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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.