Home / 451,042.22-622,202.27-278,905.16

Finding the Fourth Proportional to 451,042.22, 622,202.27 and 278,905.16

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Solution

The fourth proportional to 451,042.22, 622,202.27 and 278,905.16 is: 384,743.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,042.22 : 622,202.27 = 278,905.16 : x
  2. Step 2: Convert to fraction form
    451,042.22/622,202.27 = 278,905.16/x
  3. Step 3: Cross multiply
    451,042.22x = 622,202.27 × 278,905.16
  4. Step 4: Simplify right side
    451,042.22x = 173,535,423,827.69
  5. Step 5: Solve for x
    x = 173,535,423,827.69/451,042.22
  6. Step 6: Final answer
    x = 384,743.19

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1.5x scale

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.