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Finding the Fourth Proportional to 694,227.84, 958,008.24 and 392,428.32

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Solution

The fourth proportional to 694,227.84, 958,008.24 and 392,428.32 is: 541,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,227.84 : 958,008.24 = 392,428.32 : x
  2. Step 2: Convert to fraction form
    694,227.84/958,008.24 = 392,428.32/x
  3. Step 3: Cross multiply
    694,227.84x = 958,008.24 × 392,428.32
  4. Step 4: Simplify right side
    694,227.84x = 375,949,564,169.36
  5. Step 5: Solve for x
    x = 375,949,564,169.36/694,227.84
  6. Step 6: Final answer
    x = 541,536.28

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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.