Home / 2,758,411.20-4,137,616.80-865,149.60

Finding the Fourth Proportional to 2,758,411.20, 4,137,616.80 and 865,149.60

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Solution

The fourth proportional to 2,758,411.20, 4,137,616.80 and 865,149.60 is: 1,297,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,411.20 : 4,137,616.80 = 865,149.60 : x
  2. Step 2: Convert to fraction form
    2,758,411.20/4,137,616.80 = 865,149.60/x
  3. Step 3: Cross multiply
    2,758,411.20x = 4,137,616.80 × 865,149.60
  4. Step 4: Simplify right side
    2,758,411.20x = 3,579,657,519,473.28
  5. Step 5: Solve for x
    x = 3,579,657,519,473.28/2,758,411.20
  6. Step 6: Final answer
    x = 1,297,724.40

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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.