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Finding the Fourth Proportional to 835,459.31, 1,252,255.83 and 768,201.77

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Solution

The fourth proportional to 835,459.31, 1,252,255.83 and 768,201.77 is: 1,151,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,459.31 : 1,252,255.83 = 768,201.77 : x
  2. Step 2: Convert to fraction form
    835,459.31/1,252,255.83 = 768,201.77/x
  3. Step 3: Cross multiply
    835,459.31x = 1,252,255.83 × 768,201.77
  4. Step 4: Simplify right side
    835,459.31x = 961,985,138,837.54
  5. Step 5: Solve for x
    x = 961,985,138,837.54/835,459.31
  6. Step 6: Final answer
    x = 1,151,444.64

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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.