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Finding the Fourth Proportional to 624,179.60, 936,269.40 and 400,230.80

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Solution

The fourth proportional to 624,179.60, 936,269.40 and 400,230.80 is: 600,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,179.60 : 936,269.40 = 400,230.80 : x
  2. Step 2: Convert to fraction form
    624,179.60/936,269.40 = 400,230.80/x
  3. Step 3: Cross multiply
    624,179.60x = 936,269.40 × 400,230.80
  4. Step 4: Simplify right side
    624,179.60x = 374,723,850,977.52
  5. Step 5: Solve for x
    x = 374,723,850,977.52/624,179.60
  6. Step 6: Final answer
    x = 600,346.20

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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.