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Finding the Fourth Proportional to 528,204.70, 728,932.42 and 324,153.50

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Solution

The fourth proportional to 528,204.70, 728,932.42 and 324,153.50 is: 447,337.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,204.70 : 728,932.42 = 324,153.50 : x
  2. Step 2: Convert to fraction form
    528,204.70/728,932.42 = 324,153.50/x
  3. Step 3: Cross multiply
    528,204.70x = 728,932.42 × 324,153.50
  4. Step 4: Simplify right side
    528,204.70x = 236,285,990,143.64
  5. Step 5: Solve for x
    x = 236,285,990,143.64/528,204.70
  6. Step 6: Final answer
    x = 447,337.92

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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.