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Finding the Fourth Proportional to 382,944, 528,474.88 and 239,658.24

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Solution

The fourth proportional to 382,944, 528,474.88 and 239,658.24 is: 330,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,944 : 528,474.88 = 239,658.24 : x
  2. Step 2: Convert to fraction form
    382,944/528,474.88 = 239,658.24/x
  3. Step 3: Cross multiply
    382,944x = 528,474.88 × 239,658.24
  4. Step 4: Simplify right side
    382,944x = 126,653,359,625.01
  5. Step 5: Solve for x
    x = 126,653,359,625.01/382,944
  6. Step 6: Final answer
    x = 330,735.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.