Home / 719,510.94-1,079,078.40-213,935.79

Finding the Fourth Proportional to 719,510.94, 1,079,078.40 and 213,935.79

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Solution

The fourth proportional to 719,510.94, 1,079,078.40 and 213,935.79 is: 320,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,510.94 : 1,079,078.40 = 213,935.79 : x
  2. Step 2: Convert to fraction form
    719,510.94/1,079,078.40 = 213,935.79/x
  3. Step 3: Cross multiply
    719,510.94x = 1,079,078.40 × 213,935.79
  4. Step 4: Simplify right side
    719,510.94x = 230,853,489,975.94
  5. Step 5: Solve for x
    x = 230,853,489,975.94/719,510.94
  6. Step 6: Final answer
    x = 320,847.78

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Double scale
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Similar ratio
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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.