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Finding the Fourth Proportional to 807,791.76, 1,114,707.02 and 445,214.48

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Solution

The fourth proportional to 807,791.76, 1,114,707.02 and 445,214.48 is: 614,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,791.76 : 1,114,707.02 = 445,214.48 : x
  2. Step 2: Convert to fraction form
    807,791.76/1,114,707.02 = 445,214.48/x
  3. Step 3: Cross multiply
    807,791.76x = 1,114,707.02 × 445,214.48
  4. Step 4: Simplify right side
    807,791.76x = 496,283,706,261.65
  5. Step 5: Solve for x
    x = 496,283,706,261.65/807,791.76
  6. Step 6: Final answer
    x = 614,370.85

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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.