Home / 722,028.64-996,395.87-395,335.72

Finding the Fourth Proportional to 722,028.64, 996,395.87 and 395,335.72

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Solution

The fourth proportional to 722,028.64, 996,395.87 and 395,335.72 is: 545,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,028.64 : 996,395.87 = 395,335.72 : x
  2. Step 2: Convert to fraction form
    722,028.64/996,395.87 = 395,335.72/x
  3. Step 3: Cross multiply
    722,028.64x = 996,395.87 × 395,335.72
  4. Step 4: Simplify right side
    722,028.64x = 393,910,873,689.50
  5. Step 5: Solve for x
    x = 393,910,873,689.50/722,028.64
  6. Step 6: Final answer
    x = 545,561.29

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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.