Home / 1,265,987.79-1,899,148.44-412,759.81

Finding the Fourth Proportional to 1,265,987.79, 1,899,148.44 and 412,759.81

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Solution

The fourth proportional to 1,265,987.79, 1,899,148.44 and 412,759.81 is: 619,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,987.79 : 1,899,148.44 = 412,759.81 : x
  2. Step 2: Convert to fraction form
    1,265,987.79/1,899,148.44 = 412,759.81/x
  3. Step 3: Cross multiply
    1,265,987.79x = 1,899,148.44 × 412,759.81
  4. Step 4: Simplify right side
    1,265,987.79x = 783,892,153,177.98
  5. Step 5: Solve for x
    x = 783,892,153,177.98/1,265,987.79
  6. Step 6: Final answer
    x = 619,194.09

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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.