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Finding the Fourth Proportional to 551,270.66, 760,620.44 and 321,696.95

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Solution

The fourth proportional to 551,270.66, 760,620.44 and 321,696.95 is: 443,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,270.66 : 760,620.44 = 321,696.95 : x
  2. Step 2: Convert to fraction form
    551,270.66/760,620.44 = 321,696.95/x
  3. Step 3: Cross multiply
    551,270.66x = 760,620.44 × 321,696.95
  4. Step 4: Simplify right side
    551,270.66x = 244,689,272,656.80
  5. Step 5: Solve for x
    x = 244,689,272,656.80/551,270.66
  6. Step 6: Final answer
    x = 443,864.14

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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.