Home / 1,138,791.76-1,571,542-629,502.64

Finding the Fourth Proportional to 1,138,791.76, 1,571,542 and 629,502.64

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Solution

The fourth proportional to 1,138,791.76, 1,571,542 and 629,502.64 is: 868,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,791.76 : 1,571,542 = 629,502.64 : x
  2. Step 2: Convert to fraction form
    1,138,791.76/1,571,542 = 629,502.64/x
  3. Step 3: Cross multiply
    1,138,791.76x = 1,571,542 × 629,502.64
  4. Step 4: Simplify right side
    1,138,791.76x = 989,289,837,870.88
  5. Step 5: Solve for x
    x = 989,289,837,870.88/1,138,791.76
  6. Step 6: Final answer
    x = 868,718.82

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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.