Home / 639,406.64-882,381.24-352,926.81

Finding the Fourth Proportional to 639,406.64, 882,381.24 and 352,926.81

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Solution

The fourth proportional to 639,406.64, 882,381.24 and 352,926.81 is: 487,039.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,406.64 : 882,381.24 = 352,926.81 : x
  2. Step 2: Convert to fraction form
    639,406.64/882,381.24 = 352,926.81/x
  3. Step 3: Cross multiply
    639,406.64x = 882,381.24 × 352,926.81
  4. Step 4: Simplify right side
    639,406.64x = 311,415,996,237.04
  5. Step 5: Solve for x
    x = 311,415,996,237.04/639,406.64
  6. Step 6: Final answer
    x = 487,039.04

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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.