Home / 1,350,489.10-1,863,467.88-777,418.54

Finding the Fourth Proportional to 1,350,489.10, 1,863,467.88 and 777,418.54

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Solution

The fourth proportional to 1,350,489.10, 1,863,467.88 and 777,418.54 is: 1,072,718.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350,489.10 : 1,863,467.88 = 777,418.54 : x
  2. Step 2: Convert to fraction form
    1,350,489.10/1,863,467.88 = 777,418.54/x
  3. Step 3: Cross multiply
    1,350,489.10x = 1,863,467.88 × 777,418.54
  4. Step 4: Simplify right side
    1,350,489.10x = 1,448,694,478,606.50
  5. Step 5: Solve for x
    x = 1,448,694,478,606.50/1,350,489.10
  6. Step 6: Final answer
    x = 1,072,718.38

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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.