Home / 1,399,581.51-2,099,358.42-641,207.82

Finding the Fourth Proportional to 1,399,581.51, 2,099,358.42 and 641,207.82

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Solution

The fourth proportional to 1,399,581.51, 2,099,358.42 and 641,207.82 is: 961,805.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,581.51 : 2,099,358.42 = 641,207.82 : x
  2. Step 2: Convert to fraction form
    1,399,581.51/2,099,358.42 = 641,207.82/x
  3. Step 3: Cross multiply
    1,399,581.51x = 2,099,358.42 × 641,207.82
  4. Step 4: Simplify right side
    1,399,581.51x = 1,346,125,035,886.84
  5. Step 5: Solve for x
    x = 1,346,125,035,886.84/1,399,581.51
  6. Step 6: Final answer
    x = 961,805.39

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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.