Home / 727,369.90-1,002,791.94-509,285.23

Finding the Fourth Proportional to 727,369.90, 1,002,791.94 and 509,285.23

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Solution

The fourth proportional to 727,369.90, 1,002,791.94 and 509,285.23 is: 702,128.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,369.90 : 1,002,791.94 = 509,285.23 : x
  2. Step 2: Convert to fraction form
    727,369.90/1,002,791.94 = 509,285.23/x
  3. Step 3: Cross multiply
    727,369.90x = 1,002,791.94 × 509,285.23
  4. Step 4: Simplify right side
    727,369.90x = 510,707,123,805.05
  5. Step 5: Solve for x
    x = 510,707,123,805.05/727,369.90
  6. Step 6: Final answer
    x = 702,128.48

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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.