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Finding the Fourth Proportional to 707,893.24, 976,887.65 and 385,603.33

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Solution

The fourth proportional to 707,893.24, 976,887.65 and 385,603.33 is: 532,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,893.24 : 976,887.65 = 385,603.33 : x
  2. Step 2: Convert to fraction form
    707,893.24/976,887.65 = 385,603.33/x
  3. Step 3: Cross multiply
    707,893.24x = 976,887.65 × 385,603.33
  4. Step 4: Simplify right side
    707,893.24x = 376,691,129,397.66
  5. Step 5: Solve for x
    x = 376,691,129,397.66/707,893.24
  6. Step 6: Final answer
    x = 532,129.86

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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.