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Finding the Fourth Proportional to 400,036.51, 551,578.68 and 323,318.37

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Solution

The fourth proportional to 400,036.51, 551,578.68 and 323,318.37 is: 445,798.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,036.51 : 551,578.68 = 323,318.37 : x
  2. Step 2: Convert to fraction form
    400,036.51/551,578.68 = 323,318.37/x
  3. Step 3: Cross multiply
    400,036.51x = 551,578.68 × 323,318.37
  4. Step 4: Simplify right side
    400,036.51x = 178,335,518,710.14
  5. Step 5: Solve for x
    x = 178,335,518,710.14/400,036.51
  6. Step 6: Final answer
    x = 445,798.11

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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.