Home / 639,358.25-882,310.02-352,878.36

Finding the Fourth Proportional to 639,358.25, 882,310.02 and 352,878.36

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Solution

The fourth proportional to 639,358.25, 882,310.02 and 352,878.36 is: 486,969.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,358.25 : 882,310.02 = 352,878.36 : x
  2. Step 2: Convert to fraction form
    639,358.25/882,310.02 = 352,878.36/x
  3. Step 3: Cross multiply
    639,358.25x = 882,310.02 × 352,878.36
  4. Step 4: Simplify right side
    639,358.25x = 311,348,108,237.21
  5. Step 5: Solve for x
    x = 311,348,108,237.21/639,358.25
  6. Step 6: Final answer
    x = 486,969.72

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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.