Home / 1,338,685.52-2,008,141.68-427,999.28

Finding the Fourth Proportional to 1,338,685.52, 2,008,141.68 and 427,999.28

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Solution

The fourth proportional to 1,338,685.52, 2,008,141.68 and 427,999.28 is: 642,035.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,685.52 : 2,008,141.68 = 427,999.28 : x
  2. Step 2: Convert to fraction form
    1,338,685.52/2,008,141.68 = 427,999.28/x
  3. Step 3: Cross multiply
    1,338,685.52x = 2,008,141.68 × 427,999.28
  4. Step 4: Simplify right side
    1,338,685.52x = 859,483,193,177.99
  5. Step 5: Solve for x
    x = 859,483,193,177.99/1,338,685.52
  6. Step 6: Final answer
    x = 642,035.18

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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.