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Finding the Fourth Proportional to 707,636.25, 976,508.73 and 385,345.62

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Solution

The fourth proportional to 707,636.25, 976,508.73 and 385,345.62 is: 531,761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,636.25 : 976,508.73 = 385,345.62 : x
  2. Step 2: Convert to fraction form
    707,636.25/976,508.73 = 385,345.62/x
  3. Step 3: Cross multiply
    707,636.25x = 976,508.73 × 385,345.62
  4. Step 4: Simplify right side
    707,636.25x = 376,293,361,997.26
  5. Step 5: Solve for x
    x = 376,293,361,997.26/707,636.25
  6. Step 6: Final answer
    x = 531,761.00

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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.