Home / 1,420,211.71-1,959,940.52-839,932.26

Finding the Fourth Proportional to 1,420,211.71, 1,959,940.52 and 839,932.26

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Solution

The fourth proportional to 1,420,211.71, 1,959,940.52 and 839,932.26 is: 1,159,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,211.71 : 1,959,940.52 = 839,932.26 : x
  2. Step 2: Convert to fraction form
    1,420,211.71/1,959,940.52 = 839,932.26/x
  3. Step 3: Cross multiply
    1,420,211.71x = 1,959,940.52 × 839,932.26
  4. Step 4: Simplify right side
    1,420,211.71x = 1,646,217,271,129.37
  5. Step 5: Solve for x
    x = 1,646,217,271,129.37/1,420,211.71
  6. Step 6: Final answer
    x = 1,159,135.12

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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.