Home / 639,116.04-882,299.70-397,476.44

Finding the Fourth Proportional to 639,116.04, 882,299.70 and 397,476.44

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Solution

The fourth proportional to 639,116.04, 882,299.70 and 397,476.44 is: 548,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,116.04 : 882,299.70 = 397,476.44 : x
  2. Step 2: Convert to fraction form
    639,116.04/882,299.70 = 397,476.44/x
  3. Step 3: Cross multiply
    639,116.04x = 882,299.70 × 397,476.44
  4. Step 4: Simplify right side
    639,116.04x = 350,693,343,769.07
  5. Step 5: Solve for x
    x = 350,693,343,769.07/639,116.04
  6. Step 6: Final answer
    x = 548,716.23

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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.