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Finding the Fourth Proportional to 490,572.01, 676,989.92 and 272,778.33

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Solution

The fourth proportional to 490,572.01, 676,989.92 and 272,778.33 is: 376,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,572.01 : 676,989.92 = 272,778.33 : x
  2. Step 2: Convert to fraction form
    490,572.01/676,989.92 = 272,778.33/x
  3. Step 3: Cross multiply
    490,572.01x = 676,989.92 × 272,778.33
  4. Step 4: Simplify right side
    490,572.01x = 184,668,179,804.43
  5. Step 5: Solve for x
    x = 184,668,179,804.43/490,572.01
  6. Step 6: Final answer
    x = 376,434.40

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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.