Home / 1,505,863.44-2,078,085.51-861,282.72

Finding the Fourth Proportional to 1,505,863.44, 2,078,085.51 and 861,282.72

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Solution

The fourth proportional to 1,505,863.44, 2,078,085.51 and 861,282.72 is: 1,188,566.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,863.44 : 2,078,085.51 = 861,282.72 : x
  2. Step 2: Convert to fraction form
    1,505,863.44/2,078,085.51 = 861,282.72/x
  3. Step 3: Cross multiply
    1,505,863.44x = 2,078,085.51 × 861,282.72
  4. Step 4: Simplify right side
    1,505,863.44x = 1,789,819,140,445.39
  5. Step 5: Solve for x
    x = 1,789,819,140,445.39/1,505,863.44
  6. Step 6: Final answer
    x = 1,188,566.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.