Home / 658,629.72-987,723.18-259,165.80

Finding the Fourth Proportional to 658,629.72, 987,723.18 and 259,165.80

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Solution

The fourth proportional to 658,629.72, 987,723.18 and 259,165.80 is: 388,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,629.72 : 987,723.18 = 259,165.80 : x
  2. Step 2: Convert to fraction form
    658,629.72/987,723.18 = 259,165.80/x
  3. Step 3: Cross multiply
    658,629.72x = 987,723.18 × 259,165.80
  4. Step 4: Simplify right side
    658,629.72x = 255,984,068,123.24
  5. Step 5: Solve for x
    x = 255,984,068,123.24/658,629.72
  6. Step 6: Final answer
    x = 388,661.58

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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.