Home / 1,039.18-1,433.48-619.26

Finding the Fourth Proportional to 1,039.18, 1,433.48 and 619.26

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Solution

The fourth proportional to 1,039.18, 1,433.48 and 619.26 is: 854.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039.18 : 1,433.48 = 619.26 : x
  2. Step 2: Convert to fraction form
    1,039.18/1,433.48 = 619.26/x
  3. Step 3: Cross multiply
    1,039.18x = 1,433.48 × 619.26
  4. Step 4: Simplify right side
    1,039.18x = 887,696.82
  5. Step 5: Solve for x
    x = 887,696.82/1,039.18
  6. Step 6: Final answer
    x = 854.23

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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.