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Finding the Fourth Proportional to 658,060.53, 987,455.58 and 321,103.97

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Solution

The fourth proportional to 658,060.53, 987,455.58 and 321,103.97 is: 481,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,060.53 : 987,455.58 = 321,103.97 : x
  2. Step 2: Convert to fraction form
    658,060.53/987,455.58 = 321,103.97/x
  3. Step 3: Cross multiply
    658,060.53x = 987,455.58 × 321,103.97
  4. Step 4: Simplify right side
    658,060.53x = 317,075,906,936.65
  5. Step 5: Solve for x
    x = 317,075,906,936.65/658,060.53
  6. Step 6: Final answer
    x = 481,833.95

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1.5x scale

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.