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Finding the Fourth Proportional to 493,668.30, 740,502.45 and 455,177.10

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Solution

The fourth proportional to 493,668.30, 740,502.45 and 455,177.10 is: 682,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,668.30 : 740,502.45 = 455,177.10 : x
  2. Step 2: Convert to fraction form
    493,668.30/740,502.45 = 455,177.10/x
  3. Step 3: Cross multiply
    493,668.30x = 740,502.45 × 455,177.10
  4. Step 4: Simplify right side
    493,668.30x = 337,059,757,733.90
  5. Step 5: Solve for x
    x = 337,059,757,733.90/493,668.30
  6. Step 6: Final answer
    x = 682,765.65

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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.