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Finding the Fourth Proportional to 707,546.07, 976,400.93 and 385,250.31

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Solution

The fourth proportional to 707,546.07, 976,400.93 and 385,250.31 is: 531,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,546.07 : 976,400.93 = 385,250.31 : x
  2. Step 2: Convert to fraction form
    707,546.07/976,400.93 = 385,250.31/x
  3. Step 3: Cross multiply
    707,546.07x = 976,400.93 × 385,250.31
  4. Step 4: Simplify right side
    707,546.07x = 376,158,761,929.91
  5. Step 5: Solve for x
    x = 376,158,761,929.91/707,546.07
  6. Step 6: Final answer
    x = 531,638.54

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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.