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Finding the Fourth Proportional to 499.10, 744.87 and 483.98

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Solution

The fourth proportional to 499.10, 744.87 and 483.98 is: 722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499.10 : 744.87 = 483.98 : x
  2. Step 2: Convert to fraction form
    499.10/744.87 = 483.98/x
  3. Step 3: Cross multiply
    499.10x = 744.87 × 483.98
  4. Step 4: Simplify right side
    499.10x = 360,499.76
  5. Step 5: Solve for x
    x = 360,499.76/499.10
  6. Step 6: Final answer
    x = 722.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.