Home / 639,132.04-882,020.68-352,670.60

Finding the Fourth Proportional to 639,132.04, 882,020.68 and 352,670.60

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Solution

The fourth proportional to 639,132.04, 882,020.68 and 352,670.60 is: 486,695.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,132.04 : 882,020.68 = 352,670.60 : x
  2. Step 2: Convert to fraction form
    639,132.04/882,020.68 = 352,670.60/x
  3. Step 3: Cross multiply
    639,132.04x = 882,020.68 × 352,670.60
  4. Step 4: Simplify right side
    639,132.04x = 311,062,762,428.01
  5. Step 5: Solve for x
    x = 311,062,762,428.01/639,132.04
  6. Step 6: Final answer
    x = 486,695.62

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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.