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Finding the Fourth Proportional to 707,577.39, 976,456.08 and 385,289.73

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Solution

The fourth proportional to 707,577.39, 976,456.08 and 385,289.73 is: 531,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,577.39 : 976,456.08 = 385,289.73 : x
  2. Step 2: Convert to fraction form
    707,577.39/976,456.08 = 385,289.73/x
  3. Step 3: Cross multiply
    707,577.39x = 976,456.08 × 385,289.73
  4. Step 4: Simplify right side
    707,577.39x = 376,218,499,420.06
  5. Step 5: Solve for x
    x = 376,218,499,420.06/707,577.39
  6. Step 6: Final answer
    x = 531,699.44

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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.