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Finding the Fourth Proportional to 559,673.42, 839,428.11 and 275,287.64

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Solution

The fourth proportional to 559,673.42, 839,428.11 and 275,287.64 is: 412,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,673.42 : 839,428.11 = 275,287.64 : x
  2. Step 2: Convert to fraction form
    559,673.42/839,428.11 = 275,287.64/x
  3. Step 3: Cross multiply
    559,673.42x = 839,428.11 × 275,287.64
  4. Step 4: Simplify right side
    559,673.42x = 231,084,179,154.42
  5. Step 5: Solve for x
    x = 231,084,179,154.42/559,673.42
  6. Step 6: Final answer
    x = 412,891.11

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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.