Home / 438,979.76-659,344.44-414,221.84

Finding the Fourth Proportional to 438,979.76, 659,344.44 and 414,221.84

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Solution

The fourth proportional to 438,979.76, 659,344.44 and 414,221.84 is: 622,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,979.76 : 659,344.44 = 414,221.84 : x
  2. Step 2: Convert to fraction form
    438,979.76/659,344.44 = 414,221.84/x
  3. Step 3: Cross multiply
    438,979.76x = 659,344.44 × 414,221.84
  4. Step 4: Simplify right side
    438,979.76x = 273,114,867,130.57
  5. Step 5: Solve for x
    x = 273,114,867,130.57/438,979.76
  6. Step 6: Final answer
    x = 622,158.22

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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.