Home / 639,376.13-882,276.24-352,877.76

Finding the Fourth Proportional to 639,376.13, 882,276.24 and 352,877.76

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Solution

The fourth proportional to 639,376.13, 882,276.24 and 352,877.76 is: 486,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,376.13 : 882,276.24 = 352,877.76 : x
  2. Step 2: Convert to fraction form
    639,376.13/882,276.24 = 352,877.76/x
  3. Step 3: Cross multiply
    639,376.13x = 882,276.24 × 352,877.76
  4. Step 4: Simplify right side
    639,376.13x = 311,335,665,478.11
  5. Step 5: Solve for x
    x = 311,335,665,478.11/639,376.13
  6. Step 6: Final answer
    x = 486,936.64

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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.