Home / 721,941.93-996,291.61-395,249.43

Finding the Fourth Proportional to 721,941.93, 996,291.61 and 395,249.43

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Solution

The fourth proportional to 721,941.93, 996,291.61 and 395,249.43 is: 545,450.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,941.93 : 996,291.61 = 395,249.43 : x
  2. Step 2: Convert to fraction form
    721,941.93/996,291.61 = 395,249.43/x
  3. Step 3: Cross multiply
    721,941.93x = 996,291.61 × 395,249.43
  4. Step 4: Simplify right side
    721,941.93x = 393,783,690,966.28
  5. Step 5: Solve for x
    x = 393,783,690,966.28/721,941.93
  6. Step 6: Final answer
    x = 545,450.64

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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.