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Finding the Fourth Proportional to 707,907.52, 976,914.14 and 385,619.97

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Solution

The fourth proportional to 707,907.52, 976,914.14 and 385,619.97 is: 532,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,907.52 : 976,914.14 = 385,619.97 : x
  2. Step 2: Convert to fraction form
    707,907.52/976,914.14 = 385,619.97/x
  3. Step 3: Cross multiply
    707,907.52x = 976,914.14 × 385,619.97
  4. Step 4: Simplify right side
    707,907.52x = 376,717,598,105.66
  5. Step 5: Solve for x
    x = 376,717,598,105.66/707,907.52
  6. Step 6: Final answer
    x = 532,156.51

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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.