Home / 494,283.17-682,140.18-279,443.22

Finding the Fourth Proportional to 494,283.17, 682,140.18 and 279,443.22

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Solution

The fourth proportional to 494,283.17, 682,140.18 and 279,443.22 is: 385,648.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,283.17 : 682,140.18 = 279,443.22 : x
  2. Step 2: Convert to fraction form
    494,283.17/682,140.18 = 279,443.22/x
  3. Step 3: Cross multiply
    494,283.17x = 682,140.18 × 279,443.22
  4. Step 4: Simplify right side
    494,283.17x = 190,619,448,390.58
  5. Step 5: Solve for x
    x = 190,619,448,390.58/494,283.17
  6. Step 6: Final answer
    x = 385,648.27

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Double scale
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1.5x scale

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.