Home / 639,342.61-882,288.46-352,862.69

Finding the Fourth Proportional to 639,342.61, 882,288.46 and 352,862.69

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Solution

The fourth proportional to 639,342.61, 882,288.46 and 352,862.69 is: 486,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,342.61 : 882,288.46 = 352,862.69 : x
  2. Step 2: Convert to fraction form
    639,342.61/882,288.46 = 352,862.69/x
  3. Step 3: Cross multiply
    639,342.61x = 882,288.46 × 352,862.69
  4. Step 4: Simplify right side
    639,342.61x = 311,326,679,351.56
  5. Step 5: Solve for x
    x = 311,326,679,351.56/639,342.61
  6. Step 6: Final answer
    x = 486,948.12

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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.