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Finding the Fourth Proportional to 522,078.20, 782,825.70 and 222,507.80

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Solution

The fourth proportional to 522,078.20, 782,825.70 and 222,507.80 is: 333,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,078.20 : 782,825.70 = 222,507.80 : x
  2. Step 2: Convert to fraction form
    522,078.20/782,825.70 = 222,507.80/x
  3. Step 3: Cross multiply
    522,078.20x = 782,825.70 × 222,507.80
  4. Step 4: Simplify right side
    522,078.20x = 174,184,824,290.46
  5. Step 5: Solve for x
    x = 174,184,824,290.46/522,078.20
  6. Step 6: Final answer
    x = 333,637.42

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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.