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Finding the Fourth Proportional to 418,624.73, 627,144.75 and 247,334.19

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Solution

The fourth proportional to 418,624.73, 627,144.75 and 247,334.19 is: 370,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,624.73 : 627,144.75 = 247,334.19 : x
  2. Step 2: Convert to fraction form
    418,624.73/627,144.75 = 247,334.19/x
  3. Step 3: Cross multiply
    418,624.73x = 627,144.75 × 247,334.19
  4. Step 4: Simplify right side
    418,624.73x = 155,114,336,236.61
  5. Step 5: Solve for x
    x = 155,114,336,236.61/418,624.73
  6. Step 6: Final answer
    x = 370,533.14

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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.