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Finding the Fourth Proportional to 488,676.24, 674,373.44 and 297,689.65

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Solution

The fourth proportional to 488,676.24, 674,373.44 and 297,689.65 is: 410,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,676.24 : 674,373.44 = 297,689.65 : x
  2. Step 2: Convert to fraction form
    488,676.24/674,373.44 = 297,689.65/x
  3. Step 3: Cross multiply
    488,676.24x = 674,373.44 × 297,689.65
  4. Step 4: Simplify right side
    488,676.24x = 200,753,992,381.19
  5. Step 5: Solve for x
    x = 200,753,992,381.19/488,676.24
  6. Step 6: Final answer
    x = 410,811.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.