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Finding the Fourth Proportional to 464,359.56, 640,930.50 and 283,171.50

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Solution

The fourth proportional to 464,359.56, 640,930.50 and 283,171.50 is: 390,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,359.56 : 640,930.50 = 283,171.50 : x
  2. Step 2: Convert to fraction form
    464,359.56/640,930.50 = 283,171.50/x
  3. Step 3: Cross multiply
    464,359.56x = 640,930.50 × 283,171.50
  4. Step 4: Simplify right side
    464,359.56x = 181,493,251,080.75
  5. Step 5: Solve for x
    x = 181,493,251,080.75/464,359.56
  6. Step 6: Final answer
    x = 390,846.38

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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.