Home / 538,579.44-743,949.54-402,376.68

Finding the Fourth Proportional to 538,579.44, 743,949.54 and 402,376.68

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Solution

The fourth proportional to 538,579.44, 743,949.54 and 402,376.68 is: 555,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,579.44 : 743,949.54 = 402,376.68 : x
  2. Step 2: Convert to fraction form
    538,579.44/743,949.54 = 402,376.68/x
  3. Step 3: Cross multiply
    538,579.44x = 743,949.54 × 402,376.68
  4. Step 4: Simplify right side
    538,579.44x = 299,347,945,992.73
  5. Step 5: Solve for x
    x = 299,347,945,992.73/538,579.44
  6. Step 6: Final answer
    x = 555,810.20

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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.