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Finding the Fourth Proportional to 490,362.96, 676,696.26 and 272,565.93

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Solution

The fourth proportional to 490,362.96, 676,696.26 and 272,565.93 is: 376,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,362.96 : 676,696.26 = 272,565.93 : x
  2. Step 2: Convert to fraction form
    490,362.96/676,696.26 = 272,565.93/x
  3. Step 3: Cross multiply
    490,362.96x = 676,696.26 × 272,565.93
  4. Step 4: Simplify right side
    490,362.96x = 184,444,345,434.42
  5. Step 5: Solve for x
    x = 184,444,345,434.42/490,362.96
  6. Step 6: Final answer
    x = 376,138.41

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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.