Home / 1,420,211.46-1,959,940.17-839,932.01

Finding the Fourth Proportional to 1,420,211.46, 1,959,940.17 and 839,932.01

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Solution

The fourth proportional to 1,420,211.46, 1,959,940.17 and 839,932.01 is: 1,159,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,211.46 : 1,959,940.17 = 839,932.01 : x
  2. Step 2: Convert to fraction form
    1,420,211.46/1,959,940.17 = 839,932.01/x
  3. Step 3: Cross multiply
    1,420,211.46x = 1,959,940.17 × 839,932.01
  4. Step 4: Simplify right side
    1,420,211.46x = 1,646,216,490,317.78
  5. Step 5: Solve for x
    x = 1,646,216,490,317.78/1,420,211.46
  6. Step 6: Final answer
    x = 1,159,134.78

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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.