Home / 721,942.23-996,292.02-395,249.72

Finding the Fourth Proportional to 721,942.23, 996,292.02 and 395,249.72

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Solution

The fourth proportional to 721,942.23, 996,292.02 and 395,249.72 is: 545,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,942.23 : 996,292.02 = 395,249.72 : x
  2. Step 2: Convert to fraction form
    721,942.23/996,292.02 = 395,249.72/x
  3. Step 3: Cross multiply
    721,942.23x = 996,292.02 × 395,249.72
  4. Step 4: Simplify right side
    721,942.23x = 393,784,144,433.96
  5. Step 5: Solve for x
    x = 393,784,144,433.96/721,942.23
  6. Step 6: Final answer
    x = 545,451.05

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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.