Home / 1,420,211.94-1,959,940.85-839,932.50

Finding the Fourth Proportional to 1,420,211.94, 1,959,940.85 and 839,932.50

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Solution

The fourth proportional to 1,420,211.94, 1,959,940.85 and 839,932.50 is: 1,159,135.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,211.94 : 1,959,940.85 = 839,932.50 : x
  2. Step 2: Convert to fraction form
    1,420,211.94/1,959,940.85 = 839,932.50/x
  3. Step 3: Cross multiply
    1,420,211.94x = 1,959,940.85 × 839,932.50
  4. Step 4: Simplify right side
    1,420,211.94x = 1,646,218,015,892.79
  5. Step 5: Solve for x
    x = 1,646,218,015,892.79/1,420,211.94
  6. Step 6: Final answer
    x = 1,159,135.45

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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.