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Finding the Fourth Proportional to 1,219.25, 1,828.88 and 569.53

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Solution

The fourth proportional to 1,219.25, 1,828.88 and 569.53 is: 854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219.25 : 1,828.88 = 569.53 : x
  2. Step 2: Convert to fraction form
    1,219.25/1,828.88 = 569.53/x
  3. Step 3: Cross multiply
    1,219.25x = 1,828.88 × 569.53
  4. Step 4: Simplify right side
    1,219.25x = 1,041,603.60
  5. Step 5: Solve for x
    x = 1,041,603.60/1,219.25
  6. Step 6: Final answer
    x = 854.30

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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.