Home / 639,357.17-882,311.06-352,875.20

Finding the Fourth Proportional to 639,357.17, 882,311.06 and 352,875.20

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Solution

The fourth proportional to 639,357.17, 882,311.06 and 352,875.20 is: 486,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,357.17 : 882,311.06 = 352,875.20 : x
  2. Step 2: Convert to fraction form
    639,357.17/882,311.06 = 352,875.20/x
  3. Step 3: Cross multiply
    639,357.17x = 882,311.06 × 352,875.20
  4. Step 4: Simplify right side
    639,357.17x = 311,345,685,583.78
  5. Step 5: Solve for x
    x = 311,345,685,583.78/639,357.17
  6. Step 6: Final answer
    x = 486,966.76

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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.