Home / 482,618.31-724,128.25-212,608.26

Finding the Fourth Proportional to 482,618.31, 724,128.25 and 212,608.26

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Solution

The fourth proportional to 482,618.31, 724,128.25 and 212,608.26 is: 319,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,618.31 : 724,128.25 = 212,608.26 : x
  2. Step 2: Convert to fraction form
    482,618.31/724,128.25 = 212,608.26/x
  3. Step 3: Cross multiply
    482,618.31x = 724,128.25 × 212,608.26
  4. Step 4: Simplify right side
    482,618.31x = 153,955,647,249.35
  5. Step 5: Solve for x
    x = 153,955,647,249.35/482,618.31
  6. Step 6: Final answer
    x = 319,000.84

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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.