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Finding the Fourth Proportional to 694,551.84, 958,604.32 and 408,071.84

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Solution

The fourth proportional to 694,551.84, 958,604.32 and 408,071.84 is: 563,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,551.84 : 958,604.32 = 408,071.84 : x
  2. Step 2: Convert to fraction form
    694,551.84/958,604.32 = 408,071.84/x
  3. Step 3: Cross multiply
    694,551.84x = 958,604.32 × 408,071.84
  4. Step 4: Simplify right side
    694,551.84x = 391,179,428,694.35
  5. Step 5: Solve for x
    x = 391,179,428,694.35/694,551.84
  6. Step 6: Final answer
    x = 563,211.28

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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.