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Finding the Fourth Proportional to 419,255.84, 628,089.44 and 247,965.14

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Solution

The fourth proportional to 419,255.84, 628,089.44 and 247,965.14 is: 371,477.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,255.84 : 628,089.44 = 247,965.14 : x
  2. Step 2: Convert to fraction form
    419,255.84/628,089.44 = 247,965.14/x
  3. Step 3: Cross multiply
    419,255.84x = 628,089.44 × 247,965.14
  4. Step 4: Simplify right side
    419,255.84x = 155,744,281,541.85
  5. Step 5: Solve for x
    x = 155,744,281,541.85/419,255.84
  6. Step 6: Final answer
    x = 371,477.91

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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.