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Finding the Fourth Proportional to 1,224.44, 1,837 and 530.80

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Solution

The fourth proportional to 1,224.44, 1,837 and 530.80 is: 796.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.44 : 1,837 = 530.80 : x
  2. Step 2: Convert to fraction form
    1,224.44/1,837 = 530.80/x
  3. Step 3: Cross multiply
    1,224.44x = 1,837 × 530.80
  4. Step 4: Simplify right side
    1,224.44x = 975,079.60
  5. Step 5: Solve for x
    x = 975,079.60/1,224.44
  6. Step 6: Final answer
    x = 796.35

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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.