Home / 805,327.28-1,207,104.78-331,754.36

Finding the Fourth Proportional to 805,327.28, 1,207,104.78 and 331,754.36

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Solution

The fourth proportional to 805,327.28, 1,207,104.78 and 331,754.36 is: 497,266.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,327.28 : 1,207,104.78 = 331,754.36 : x
  2. Step 2: Convert to fraction form
    805,327.28/1,207,104.78 = 331,754.36/x
  3. Step 3: Cross multiply
    805,327.28x = 1,207,104.78 × 331,754.36
  4. Step 4: Simplify right side
    805,327.28x = 400,462,273,741.84
  5. Step 5: Solve for x
    x = 400,462,273,741.84/805,327.28
  6. Step 6: Final answer
    x = 497,266.49

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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.