Home / 639,243.31-882,154.87-352,763.35

Finding the Fourth Proportional to 639,243.31, 882,154.87 and 352,763.35

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Solution

The fourth proportional to 639,243.31, 882,154.87 and 352,763.35 is: 486,812.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,243.31 : 882,154.87 = 352,763.35 : x
  2. Step 2: Convert to fraction form
    639,243.31/882,154.87 = 352,763.35/x
  3. Step 3: Cross multiply
    639,243.31x = 882,154.87 × 352,763.35
  4. Step 4: Simplify right side
    639,243.31x = 311,191,907,160.01
  5. Step 5: Solve for x
    x = 311,191,907,160.01/639,243.31
  6. Step 6: Final answer
    x = 486,812.93

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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.