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Finding the Fourth Proportional to 1,068.88, 1,602.89 and 483.86

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Solution

The fourth proportional to 1,068.88, 1,602.89 and 483.86 is: 725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.88 : 1,602.89 = 483.86 : x
  2. Step 2: Convert to fraction form
    1,068.88/1,602.89 = 483.86/x
  3. Step 3: Cross multiply
    1,068.88x = 1,602.89 × 483.86
  4. Step 4: Simplify right side
    1,068.88x = 775,574.36
  5. Step 5: Solve for x
    x = 775,574.36/1,068.88
  6. Step 6: Final answer
    x = 725.60

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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.