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Finding the Fourth Proportional to 551,568.39, 761,164.44 and 306,553.11

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Solution

The fourth proportional to 551,568.39, 761,164.44 and 306,553.11 is: 423,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,568.39 : 761,164.44 = 306,553.11 : x
  2. Step 2: Convert to fraction form
    551,568.39/761,164.44 = 306,553.11/x
  3. Step 3: Cross multiply
    551,568.39x = 761,164.44 × 306,553.11
  4. Step 4: Simplify right side
    551,568.39x = 233,337,326,303.41
  5. Step 5: Solve for x
    x = 233,337,326,303.41/551,568.39
  6. Step 6: Final answer
    x = 423,043.33

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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.