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Finding the Fourth Proportional to 622,662.60, 933,984.30 and 422,485.32

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Solution

The fourth proportional to 622,662.60, 933,984.30 and 422,485.32 is: 633,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,662.60 : 933,984.30 = 422,485.32 : x
  2. Step 2: Convert to fraction form
    622,662.60/933,984.30 = 422,485.32/x
  3. Step 3: Cross multiply
    622,662.60x = 933,984.30 × 422,485.32
  4. Step 4: Simplify right side
    622,662.60x = 394,594,655,860.48
  5. Step 5: Solve for x
    x = 394,594,655,860.48/622,662.60
  6. Step 6: Final answer
    x = 633,721.47

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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.