Home / 1,302,909.50-1,797,971.64-722,107.88

Finding the Fourth Proportional to 1,302,909.50, 1,797,971.64 and 722,107.88

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Solution

The fourth proportional to 1,302,909.50, 1,797,971.64 and 722,107.88 is: 996,484.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,909.50 : 1,797,971.64 = 722,107.88 : x
  2. Step 2: Convert to fraction form
    1,302,909.50/1,797,971.64 = 722,107.88/x
  3. Step 3: Cross multiply
    1,302,909.50x = 1,797,971.64 × 722,107.88
  4. Step 4: Simplify right side
    1,302,909.50x = 1,298,329,489,260.52
  5. Step 5: Solve for x
    x = 1,298,329,489,260.52/1,302,909.50
  6. Step 6: Final answer
    x = 996,484.78

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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.