Home / 3,117,255.80-4,676,321.10-987,117.80

Finding the Fourth Proportional to 3,117,255.80, 4,676,321.10 and 987,117.80

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Solution

The fourth proportional to 3,117,255.80, 4,676,321.10 and 987,117.80 is: 1,480,815.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117,255.80 : 4,676,321.10 = 987,117.80 : x
  2. Step 2: Convert to fraction form
    3,117,255.80/4,676,321.10 = 987,117.80/x
  3. Step 3: Cross multiply
    3,117,255.80x = 4,676,321.10 × 987,117.80
  4. Step 4: Simplify right side
    3,117,255.80x = 4,616,079,796,325.58
  5. Step 5: Solve for x
    x = 4,616,079,796,325.58/3,117,255.80
  6. Step 6: Final answer
    x = 1,480,815.21

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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.