Home / 1,039.03-1,433.90-619.25

Finding the Fourth Proportional to 1,039.03, 1,433.90 and 619.25

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Solution

The fourth proportional to 1,039.03, 1,433.90 and 619.25 is: 854.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.03 : 1,433.90 = 619.25 : x
  2. Step 2: Convert to fraction form
    1,039.03/1,433.90 = 619.25/x
  3. Step 3: Cross multiply
    1,039.03x = 1,433.90 × 619.25
  4. Step 4: Simplify right side
    1,039.03x = 887,936.95
  5. Step 5: Solve for x
    x = 887,936.95/1,039.03
  6. Step 6: Final answer
    x = 854.58

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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.