Home / 727,584.92-1,003,933.94-405,287

Finding the Fourth Proportional to 727,584.92, 1,003,933.94 and 405,287

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Solution

The fourth proportional to 727,584.92, 1,003,933.94 and 405,287 is: 559,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,584.92 : 1,003,933.94 = 405,287 : x
  2. Step 2: Convert to fraction form
    727,584.92/1,003,933.94 = 405,287/x
  3. Step 3: Cross multiply
    727,584.92x = 1,003,933.94 × 405,287
  4. Step 4: Simplify right side
    727,584.92x = 406,881,374,740.78
  5. Step 5: Solve for x
    x = 406,881,374,740.78/727,584.92
  6. Step 6: Final answer
    x = 559,221.84

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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.