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Finding the Fourth Proportional to 551,179.94, 760,602.61 and 306,180.58

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Solution

The fourth proportional to 551,179.94, 760,602.61 and 306,180.58 is: 422,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,179.94 : 760,602.61 = 306,180.58 : x
  2. Step 2: Convert to fraction form
    551,179.94/760,602.61 = 306,180.58/x
  3. Step 3: Cross multiply
    551,179.94x = 760,602.61 × 306,180.58
  4. Step 4: Simplify right side
    551,179.94x = 232,881,746,377.81
  5. Step 5: Solve for x
    x = 232,881,746,377.81/551,179.94
  6. Step 6: Final answer
    x = 422,514.92

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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.