Home / 721,141.80-1,081,313.34-294,976.86

Finding the Fourth Proportional to 721,141.80, 1,081,313.34 and 294,976.86

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Solution

The fourth proportional to 721,141.80, 1,081,313.34 and 294,976.86 is: 442,301.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,141.80 : 1,081,313.34 = 294,976.86 : x
  2. Step 2: Convert to fraction form
    721,141.80/1,081,313.34 = 294,976.86/x
  3. Step 3: Cross multiply
    721,141.80x = 1,081,313.34 × 294,976.86
  4. Step 4: Simplify right side
    721,141.80x = 318,962,413,709.31
  5. Step 5: Solve for x
    x = 318,962,413,709.31/721,141.80
  6. Step 6: Final answer
    x = 442,301.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.