Home / 490,069.23-676,286.73-272,278.89

Finding the Fourth Proportional to 490,069.23, 676,286.73 and 272,278.89

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Solution

The fourth proportional to 490,069.23, 676,286.73 and 272,278.89 is: 375,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,069.23 : 676,286.73 = 272,278.89 : x
  2. Step 2: Convert to fraction form
    490,069.23/676,286.73 = 272,278.89/x
  3. Step 3: Cross multiply
    490,069.23x = 676,286.73 × 272,278.89
  4. Step 4: Simplify right side
    490,069.23x = 184,138,600,166.13
  5. Step 5: Solve for x
    x = 184,138,600,166.13/490,069.23
  6. Step 6: Final answer
    x = 375,739.97

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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.