Home / 2,137,841.64-2,949,400.62-1,220,121.72

Finding the Fourth Proportional to 2,137,841.64, 2,949,400.62 and 1,220,121.72

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Solution

The fourth proportional to 2,137,841.64, 2,949,400.62 and 1,220,121.72 is: 1,683,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137,841.64 : 2,949,400.62 = 1,220,121.72 : x
  2. Step 2: Convert to fraction form
    2,137,841.64/2,949,400.62 = 1,220,121.72/x
  3. Step 3: Cross multiply
    2,137,841.64x = 2,949,400.62 × 1,220,121.72
  4. Step 4: Simplify right side
    2,137,841.64x = 3,598,627,757,443.47
  5. Step 5: Solve for x
    x = 3,598,627,757,443.47/2,137,841.64
  6. Step 6: Final answer
    x = 1,683,299.50

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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.