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Finding the Fourth Proportional to 1,252.66, 1,878.99 and 483.34

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Solution

The fourth proportional to 1,252.66, 1,878.99 and 483.34 is: 725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252.66 : 1,878.99 = 483.34 : x
  2. Step 2: Convert to fraction form
    1,252.66/1,878.99 = 483.34/x
  3. Step 3: Cross multiply
    1,252.66x = 1,878.99 × 483.34
  4. Step 4: Simplify right side
    1,252.66x = 908,191.03
  5. Step 5: Solve for x
    x = 908,191.03/1,252.66
  6. Step 6: Final answer
    x = 725.01

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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.