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Finding the Fourth Proportional to 788,254.20, 1,087,791.84 and 448,722

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Solution

The fourth proportional to 788,254.20, 1,087,791.84 and 448,722 is: 619,236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,254.20 : 1,087,791.84 = 448,722 : x
  2. Step 2: Convert to fraction form
    788,254.20/1,087,791.84 = 448,722/x
  3. Step 3: Cross multiply
    788,254.20x = 1,087,791.84 × 448,722
  4. Step 4: Simplify right side
    788,254.20x = 488,116,130,028.48
  5. Step 5: Solve for x
    x = 488,116,130,028.48/788,254.20
  6. Step 6: Final answer
    x = 619,236.95

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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.