Home / 319,889.05-481,731.91-284,853.31

Finding the Fourth Proportional to 319,889.05, 481,731.91 and 284,853.31

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Solution

The fourth proportional to 319,889.05, 481,731.91 and 284,853.31 is: 428,970.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,889.05 : 481,731.91 = 284,853.31 : x
  2. Step 2: Convert to fraction form
    319,889.05/481,731.91 = 284,853.31/x
  3. Step 3: Cross multiply
    319,889.05x = 481,731.91 × 284,853.31
  4. Step 4: Simplify right side
    319,889.05x = 137,222,927,179.66
  5. Step 5: Solve for x
    x = 137,222,927,179.66/319,889.05
  6. Step 6: Final answer
    x = 428,970.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.