Home / 1,902,489.69-2,854,173.74-640,286.49

Finding the Fourth Proportional to 1,902,489.69, 2,854,173.74 and 640,286.49

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Solution

The fourth proportional to 1,902,489.69, 2,854,173.74 and 640,286.49 is: 960,577.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,902,489.69 : 2,854,173.74 = 640,286.49 : x
  2. Step 2: Convert to fraction form
    1,902,489.69/2,854,173.74 = 640,286.49/x
  3. Step 3: Cross multiply
    1,902,489.69x = 2,854,173.74 × 640,286.49
  4. Step 4: Simplify right side
    1,902,489.69x = 1,827,488,882,633.34
  5. Step 5: Solve for x
    x = 1,827,488,882,633.34/1,902,489.69
  6. Step 6: Final answer
    x = 960,577.55

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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.