Home / 727,553.67-1,003,891.01-405,255.57

Finding the Fourth Proportional to 727,553.67, 1,003,891.01 and 405,255.57

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Solution

The fourth proportional to 727,553.67, 1,003,891.01 and 405,255.57 is: 559,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,553.67 : 1,003,891.01 = 405,255.57 : x
  2. Step 2: Convert to fraction form
    727,553.67/1,003,891.01 = 405,255.57/x
  3. Step 3: Cross multiply
    727,553.67x = 1,003,891.01 × 405,255.57
  4. Step 4: Simplify right side
    727,553.67x = 406,832,421,449.15
  5. Step 5: Solve for x
    x = 406,832,421,449.15/727,553.67
  6. Step 6: Final answer
    x = 559,178.57

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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.