Home / 351,606.05-527,076.90-319,387.44

Finding the Fourth Proportional to 351,606.05, 527,076.90 and 319,387.44

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Solution

The fourth proportional to 351,606.05, 527,076.90 and 319,387.44 is: 478,779.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,606.05 : 527,076.90 = 319,387.44 : x
  2. Step 2: Convert to fraction form
    351,606.05/527,076.90 = 319,387.44/x
  3. Step 3: Cross multiply
    351,606.05x = 527,076.90 × 319,387.44
  4. Step 4: Simplify right side
    351,606.05x = 168,341,741,774.14
  5. Step 5: Solve for x
    x = 168,341,741,774.14/351,606.05
  6. Step 6: Final answer
    x = 478,779.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.