Home / 846,287.05-1,269,438.78-215,200.86

Finding the Fourth Proportional to 846,287.05, 1,269,438.78 and 215,200.86

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Solution

The fourth proportional to 846,287.05, 1,269,438.78 and 215,200.86 is: 322,803.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,287.05 : 1,269,438.78 = 215,200.86 : x
  2. Step 2: Convert to fraction form
    846,287.05/1,269,438.78 = 215,200.86/x
  3. Step 3: Cross multiply
    846,287.05x = 1,269,438.78 × 215,200.86
  4. Step 4: Simplify right side
    846,287.05x = 273,184,319,150.05
  5. Step 5: Solve for x
    x = 273,184,319,150.05/846,287.05
  6. Step 6: Final answer
    x = 322,803.38

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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.