Home / 719,305.92-1,078,958.57-213,864.71

Finding the Fourth Proportional to 719,305.92, 1,078,958.57 and 213,864.71

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Solution

The fourth proportional to 719,305.92, 1,078,958.57 and 213,864.71 is: 320,796.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,305.92 : 1,078,958.57 = 213,864.71 : x
  2. Step 2: Convert to fraction form
    719,305.92/1,078,958.57 = 213,864.71/x
  3. Step 3: Cross multiply
    719,305.92x = 1,078,958.57 × 213,864.71
  4. Step 4: Simplify right side
    719,305.92x = 230,751,156,280.27
  5. Step 5: Solve for x
    x = 230,751,156,280.27/719,305.92
  6. Step 6: Final answer
    x = 320,796.97

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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.