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Finding the Fourth Proportional to 493,670.30, 740,505.45 and 455,179.10

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Solution

The fourth proportional to 493,670.30, 740,505.45 and 455,179.10 is: 682,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,670.30 : 740,505.45 = 455,179.10 : x
  2. Step 2: Convert to fraction form
    493,670.30/740,505.45 = 455,179.10/x
  3. Step 3: Cross multiply
    493,670.30x = 740,505.45 × 455,179.10
  4. Step 4: Simplify right side
    493,670.30x = 337,062,604,276.10
  5. Step 5: Solve for x
    x = 337,062,604,276.10/493,670.30
  6. Step 6: Final answer
    x = 682,768.65

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Similar ratio
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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.