Home / 1,687,513.20-2,328,651.36-962,391.60

Finding the Fourth Proportional to 1,687,513.20, 2,328,651.36 and 962,391.60

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Solution

The fourth proportional to 1,687,513.20, 2,328,651.36 and 962,391.60 is: 1,328,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,513.20 : 2,328,651.36 = 962,391.60 : x
  2. Step 2: Convert to fraction form
    1,687,513.20/2,328,651.36 = 962,391.60/x
  3. Step 3: Cross multiply
    1,687,513.20x = 2,328,651.36 × 962,391.60
  4. Step 4: Simplify right side
    1,687,513.20x = 2,241,074,508,192.58
  5. Step 5: Solve for x
    x = 2,241,074,508,192.58/1,687,513.20
  6. Step 6: Final answer
    x = 1,328,033.76

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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.