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Finding the Fourth Proportional to 447,768.40, 627,705.20 and 447,768.40

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Solution

The fourth proportional to 447,768.40, 627,705.20 and 447,768.40 is: 627,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,768.40 : 627,705.20 = 447,768.40 : x
  2. Step 2: Convert to fraction form
    447,768.40/627,705.20 = 447,768.40/x
  3. Step 3: Cross multiply
    447,768.40x = 627,705.20 × 447,768.40
  4. Step 4: Simplify right side
    447,768.40x = 281,066,553,075.68
  5. Step 5: Solve for x
    x = 281,066,553,075.68/447,768.40
  6. Step 6: Final answer
    x = 627,705.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.