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Finding the Fourth Proportional to 608,601.60, 911,152.80 and 372,405.60

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Solution

The fourth proportional to 608,601.60, 911,152.80 and 372,405.60 is: 557,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,601.60 : 911,152.80 = 372,405.60 : x
  2. Step 2: Convert to fraction form
    608,601.60/911,152.80 = 372,405.60/x
  3. Step 3: Cross multiply
    608,601.60x = 911,152.80 × 372,405.60
  4. Step 4: Simplify right side
    608,601.60x = 339,318,405,175.68
  5. Step 5: Solve for x
    x = 339,318,405,175.68/608,601.60
  6. Step 6: Final answer
    x = 557,537.81

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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.