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Finding the Fourth Proportional to 451,041.09, 622,200.72 and 278,904.03

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Solution

The fourth proportional to 451,041.09, 622,200.72 and 278,904.03 is: 384,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,041.09 : 622,200.72 = 278,904.03 : x
  2. Step 2: Convert to fraction form
    451,041.09/622,200.72 = 278,904.03/x
  3. Step 3: Cross multiply
    451,041.09x = 622,200.72 × 278,904.03
  4. Step 4: Simplify right side
    451,041.09x = 173,534,288,276.90
  5. Step 5: Solve for x
    x = 173,534,288,276.90/451,041.09
  6. Step 6: Final answer
    x = 384,741.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.