Home / 1,238,569.44-1,857,408.45-428,733.82

Finding the Fourth Proportional to 1,238,569.44, 1,857,408.45 and 428,733.82

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Solution

The fourth proportional to 1,238,569.44, 1,857,408.45 and 428,733.82 is: 642,946.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,569.44 : 1,857,408.45 = 428,733.82 : x
  2. Step 2: Convert to fraction form
    1,238,569.44/1,857,408.45 = 428,733.82/x
  3. Step 3: Cross multiply
    1,238,569.44x = 1,857,408.45 × 428,733.82
  4. Step 4: Simplify right side
    1,238,569.44x = 796,333,825,069.31
  5. Step 5: Solve for x
    x = 796,333,825,069.31/1,238,569.44
  6. Step 6: Final answer
    x = 642,946.45

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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.