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Finding the Fourth Proportional to 553,805.82, 764,255.52 and 324,498.60

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Solution

The fourth proportional to 553,805.82, 764,255.52 and 324,498.60 is: 447,810.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,805.82 : 764,255.52 = 324,498.60 : x
  2. Step 2: Convert to fraction form
    553,805.82/764,255.52 = 324,498.60/x
  3. Step 3: Cross multiply
    553,805.82x = 764,255.52 × 324,498.60
  4. Step 4: Simplify right side
    553,805.82x = 247,999,846,282.27
  5. Step 5: Solve for x
    x = 247,999,846,282.27/553,805.82
  6. Step 6: Final answer
    x = 447,810.11

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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.