Home / 400,224.51-551,935.52-318,823.39

Finding the Fourth Proportional to 400,224.51, 551,935.52 and 318,823.39

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Solution

The fourth proportional to 400,224.51, 551,935.52 and 318,823.39 is: 439,678.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,224.51 : 551,935.52 = 318,823.39 : x
  2. Step 2: Convert to fraction form
    400,224.51/551,935.52 = 318,823.39/x
  3. Step 3: Cross multiply
    400,224.51x = 551,935.52 × 318,823.39
  4. Step 4: Simplify right side
    400,224.51x = 175,969,949,837.88
  5. Step 5: Solve for x
    x = 175,969,949,837.88/400,224.51
  6. Step 6: Final answer
    x = 439,678.09

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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.