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Finding the Fourth Proportional to 567,277.60, 782,847.84 and 312,629.44

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Solution

The fourth proportional to 567,277.60, 782,847.84 and 312,629.44 is: 431,431.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,277.60 : 782,847.84 = 312,629.44 : x
  2. Step 2: Convert to fraction form
    567,277.60/782,847.84 = 312,629.44/x
  3. Step 3: Cross multiply
    567,277.60x = 782,847.84 × 312,629.44
  4. Step 4: Simplify right side
    567,277.60x = 244,741,281,824.41
  5. Step 5: Solve for x
    x = 244,741,281,824.41/567,277.60
  6. Step 6: Final answer
    x = 431,431.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.