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Finding the Fourth Proportional to 528,099.73, 728,724.04 and 324,159.23

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Solution

The fourth proportional to 528,099.73, 728,724.04 and 324,159.23 is: 447,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.73 : 728,724.04 = 324,159.23 : x
  2. Step 2: Convert to fraction form
    528,099.73/728,724.04 = 324,159.23/x
  3. Step 3: Cross multiply
    528,099.73x = 728,724.04 × 324,159.23
  4. Step 4: Simplify right side
    528,099.73x = 236,222,624,700.30
  5. Step 5: Solve for x
    x = 236,222,624,700.30/528,099.73
  6. Step 6: Final answer
    x = 447,306.85

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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.