Home / 817,792.59-1,128,586.94-455,193.46

Finding the Fourth Proportional to 817,792.59, 1,128,586.94 and 455,193.46

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Solution

The fourth proportional to 817,792.59, 1,128,586.94 and 455,193.46 is: 628,185.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,792.59 : 1,128,586.94 = 455,193.46 : x
  2. Step 2: Convert to fraction form
    817,792.59/1,128,586.94 = 455,193.46/x
  3. Step 3: Cross multiply
    817,792.59x = 1,128,586.94 × 455,193.46
  4. Step 4: Simplify right side
    817,792.59x = 513,725,394,129.41
  5. Step 5: Solve for x
    x = 513,725,394,129.41/817,792.59
  6. Step 6: Final answer
    x = 628,185.44

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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.