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Finding the Fourth Proportional to 1,263.76, 1,895.61 and 483.56

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Solution

The fourth proportional to 1,263.76, 1,895.61 and 483.56 is: 725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263.76 : 1,895.61 = 483.56 : x
  2. Step 2: Convert to fraction form
    1,263.76/1,895.61 = 483.56/x
  3. Step 3: Cross multiply
    1,263.76x = 1,895.61 × 483.56
  4. Step 4: Simplify right side
    1,263.76x = 916,641.17
  5. Step 5: Solve for x
    x = 916,641.17/1,263.76
  6. Step 6: Final answer
    x = 725.33

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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.