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Finding the Fourth Proportional to 560,015.73, 839,760.89 and 204,781.32

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Solution

The fourth proportional to 560,015.73, 839,760.89 and 204,781.32 is: 307,075.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,015.73 : 839,760.89 = 204,781.32 : x
  2. Step 2: Convert to fraction form
    560,015.73/839,760.89 = 204,781.32/x
  3. Step 3: Cross multiply
    560,015.73x = 839,760.89 × 204,781.32
  4. Step 4: Simplify right side
    560,015.73x = 171,967,342,514.67
  5. Step 5: Solve for x
    x = 171,967,342,514.67/560,015.73
  6. Step 6: Final answer
    x = 307,075.91

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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.