Home / 880,507.67-1,321,353.48-311,886.86

Finding the Fourth Proportional to 880,507.67, 1,321,353.48 and 311,886.86

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Solution

The fourth proportional to 880,507.67, 1,321,353.48 and 311,886.86 is: 468,039.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,507.67 : 1,321,353.48 = 311,886.86 : x
  2. Step 2: Convert to fraction form
    880,507.67/1,321,353.48 = 311,886.86/x
  3. Step 3: Cross multiply
    880,507.67x = 1,321,353.48 × 311,886.86
  4. Step 4: Simplify right side
    880,507.67x = 412,112,787,827.27
  5. Step 5: Solve for x
    x = 412,112,787,827.27/880,507.67
  6. Step 6: Final answer
    x = 468,039.97

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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.