Home / 1,238,537.97-1,857,361.24-428,702.35

Finding the Fourth Proportional to 1,238,537.97, 1,857,361.24 and 428,702.35

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Solution

The fourth proportional to 1,238,537.97, 1,857,361.24 and 428,702.35 is: 642,899.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,537.97 : 1,857,361.24 = 428,702.35 : x
  2. Step 2: Convert to fraction form
    1,238,537.97/1,857,361.24 = 428,702.35/x
  3. Step 3: Cross multiply
    1,238,537.97x = 1,857,361.24 × 428,702.35
  4. Step 4: Simplify right side
    1,238,537.97x = 796,255,120,126.66
  5. Step 5: Solve for x
    x = 796,255,120,126.66/1,238,537.97
  6. Step 6: Final answer
    x = 642,899.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.