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Finding the Fourth Proportional to 551,179.82, 760,602.44 and 306,180.45

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Solution

The fourth proportional to 551,179.82, 760,602.44 and 306,180.45 is: 422,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,179.82 : 760,602.44 = 306,180.45 : x
  2. Step 2: Convert to fraction form
    551,179.82/760,602.44 = 306,180.45/x
  3. Step 3: Cross multiply
    551,179.82x = 760,602.44 × 306,180.45
  4. Step 4: Simplify right side
    551,179.82x = 232,881,598,486.35
  5. Step 5: Solve for x
    x = 232,881,598,486.35/551,179.82
  6. Step 6: Final answer
    x = 422,514.74

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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.