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Finding the Fourth Proportional to 559,961.70, 839,942.55 and 494,643.30

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Solution

The fourth proportional to 559,961.70, 839,942.55 and 494,643.30 is: 741,964.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,961.70 : 839,942.55 = 494,643.30 : x
  2. Step 2: Convert to fraction form
    559,961.70/839,942.55 = 494,643.30/x
  3. Step 3: Cross multiply
    559,961.70x = 839,942.55 × 494,643.30
  4. Step 4: Simplify right side
    559,961.70x = 415,471,954,742.42
  5. Step 5: Solve for x
    x = 415,471,954,742.42/559,961.70
  6. Step 6: Final answer
    x = 741,964.95

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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.