Home / 639,124.53-882,010.31-352,663.07

Finding the Fourth Proportional to 639,124.53, 882,010.31 and 352,663.07

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Solution

The fourth proportional to 639,124.53, 882,010.31 and 352,663.07 is: 486,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,124.53 : 882,010.31 = 352,663.07 : x
  2. Step 2: Convert to fraction form
    639,124.53/882,010.31 = 352,663.07/x
  3. Step 3: Cross multiply
    639,124.53x = 882,010.31 × 352,663.07
  4. Step 4: Simplify right side
    639,124.53x = 311,052,463,696.25
  5. Step 5: Solve for x
    x = 311,052,463,696.25/639,124.53
  6. Step 6: Final answer
    x = 486,685.22

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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.