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Finding the Fourth Proportional to 622,052.40, 933,078.60 and 422,986.80

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Solution

The fourth proportional to 622,052.40, 933,078.60 and 422,986.80 is: 634,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,052.40 : 933,078.60 = 422,986.80 : x
  2. Step 2: Convert to fraction form
    622,052.40/933,078.60 = 422,986.80/x
  3. Step 3: Cross multiply
    622,052.40x = 933,078.60 × 422,986.80
  4. Step 4: Simplify right side
    622,052.40x = 394,679,931,162.48
  5. Step 5: Solve for x
    x = 394,679,931,162.48/622,052.40
  6. Step 6: Final answer
    x = 634,480.20

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Similar ratio
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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.