Home / 490,550.95-677,016.43-272,781.34

Finding the Fourth Proportional to 490,550.95, 677,016.43 and 272,781.34

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Solution

The fourth proportional to 490,550.95, 677,016.43 and 272,781.34 is: 376,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,550.95 : 677,016.43 = 272,781.34 : x
  2. Step 2: Convert to fraction form
    490,550.95/677,016.43 = 272,781.34/x
  3. Step 3: Cross multiply
    490,550.95x = 677,016.43 × 272,781.34
  4. Step 4: Simplify right side
    490,550.95x = 184,677,446,602.92
  5. Step 5: Solve for x
    x = 184,677,446,602.92/490,550.95
  6. Step 6: Final answer
    x = 376,469.45

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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.