Home / 3,955,628.40-5,917,696.20-3,428,998.80

Finding the Fourth Proportional to 3,955,628.40, 5,917,696.20 and 3,428,998.80

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Solution

The fourth proportional to 3,955,628.40, 5,917,696.20 and 3,428,998.80 is: 5,129,848.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955,628.40 : 5,917,696.20 = 3,428,998.80 : x
  2. Step 2: Convert to fraction form
    3,955,628.40/5,917,696.20 = 3,428,998.80/x
  3. Step 3: Cross multiply
    3,955,628.40x = 5,917,696.20 × 3,428,998.80
  4. Step 4: Simplify right side
    3,955,628.40x = 20,291,773,168,564.56
  5. Step 5: Solve for x
    x = 20,291,773,168,564.56/3,955,628.40
  6. Step 6: Final answer
    x = 5,129,848.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.