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Finding the Fourth Proportional to 419,360.90, 578,793.88 and 247,268.60

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Solution

The fourth proportional to 419,360.90, 578,793.88 and 247,268.60 is: 341,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,360.90 : 578,793.88 = 247,268.60 : x
  2. Step 2: Convert to fraction form
    419,360.90/578,793.88 = 247,268.60/x
  3. Step 3: Cross multiply
    419,360.90x = 578,793.88 × 247,268.60
  4. Step 4: Simplify right side
    419,360.90x = 143,117,551,286.32
  5. Step 5: Solve for x
    x = 143,117,551,286.32/419,360.90
  6. Step 6: Final answer
    x = 341,275.39

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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.