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Finding the Fourth Proportional to 489,996.91, 676,172.74 and 272,219.64

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Solution

The fourth proportional to 489,996.91, 676,172.74 and 272,219.64 is: 375,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,996.91 : 676,172.74 = 272,219.64 : x
  2. Step 2: Convert to fraction form
    489,996.91/676,172.74 = 272,219.64/x
  3. Step 3: Cross multiply
    489,996.91x = 676,172.74 × 272,219.64
  4. Step 4: Simplify right side
    489,996.91x = 184,067,495,118.65
  5. Step 5: Solve for x
    x = 184,067,495,118.65/489,996.91
  6. Step 6: Final answer
    x = 375,650.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.