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Finding the Fourth Proportional to 496.40, 740.10 and 483.58

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Solution

The fourth proportional to 496.40, 740.10 and 483.58 is: 720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.40 : 740.10 = 483.58 : x
  2. Step 2: Convert to fraction form
    496.40/740.10 = 483.58/x
  3. Step 3: Cross multiply
    496.40x = 740.10 × 483.58
  4. Step 4: Simplify right side
    496.40x = 357,897.56
  5. Step 5: Solve for x
    x = 357,897.56/496.40
  6. Step 6: Final answer
    x = 720.99

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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.