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Finding the Fourth Proportional to 523,268.40, 784,902.60 and 345,975.60

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Solution

The fourth proportional to 523,268.40, 784,902.60 and 345,975.60 is: 518,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,268.40 : 784,902.60 = 345,975.60 : x
  2. Step 2: Convert to fraction form
    523,268.40/784,902.60 = 345,975.60/x
  3. Step 3: Cross multiply
    523,268.40x = 784,902.60 × 345,975.60
  4. Step 4: Simplify right side
    523,268.40x = 271,557,147,976.56
  5. Step 5: Solve for x
    x = 271,557,147,976.56/523,268.40
  6. Step 6: Final answer
    x = 518,963.40

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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.