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Finding the Fourth Proportional to 1,145,502, 1,580,792.76 and 636,251.76

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Solution

The fourth proportional to 1,145,502, 1,580,792.76 and 636,251.76 is: 878,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,502 : 1,580,792.76 = 636,251.76 : x
  2. Step 2: Convert to fraction form
    1,145,502/1,580,792.76 = 636,251.76/x
  3. Step 3: Cross multiply
    1,145,502x = 1,580,792.76 × 636,251.76
  4. Step 4: Simplify right side
    1,145,502x = 1,005,782,175,745.26
  5. Step 5: Solve for x
    x = 1,005,782,175,745.26/1,145,502
  6. Step 6: Final answer
    x = 878,027.43

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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.