Home / 538,970.49-743,642.37-395,481.42

Finding the Fourth Proportional to 538,970.49, 743,642.37 and 395,481.42

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Solution

The fourth proportional to 538,970.49, 743,642.37 and 395,481.42 is: 545,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,970.49 : 743,642.37 = 395,481.42 : x
  2. Step 2: Convert to fraction form
    538,970.49/743,642.37 = 395,481.42/x
  3. Step 3: Cross multiply
    538,970.49x = 743,642.37 × 395,481.42
  4. Step 4: Simplify right side
    538,970.49x = 294,096,740,459.77
  5. Step 5: Solve for x
    x = 294,096,740,459.77/538,970.49
  6. Step 6: Final answer
    x = 545,663.90

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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.