Home / 721,982.64-996,296.54-395,232.46

Finding the Fourth Proportional to 721,982.64, 996,296.54 and 395,232.46

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Solution

The fourth proportional to 721,982.64, 996,296.54 and 395,232.46 is: 545,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,982.64 : 996,296.54 = 395,232.46 : x
  2. Step 2: Convert to fraction form
    721,982.64/996,296.54 = 395,232.46/x
  3. Step 3: Cross multiply
    721,982.64x = 996,296.54 × 395,232.46
  4. Step 4: Simplify right side
    721,982.64x = 393,768,727,926.79
  5. Step 5: Solve for x
    x = 393,768,727,926.79/721,982.64
  6. Step 6: Final answer
    x = 545,399.16

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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.