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Finding the Fourth Proportional to 666,449.24, 919,697.17 and 360,524.85

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Solution

The fourth proportional to 666,449.24, 919,697.17 and 360,524.85 is: 497,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,449.24 : 919,697.17 = 360,524.85 : x
  2. Step 2: Convert to fraction form
    666,449.24/919,697.17 = 360,524.85/x
  3. Step 3: Cross multiply
    666,449.24x = 919,697.17 × 360,524.85
  4. Step 4: Simplify right side
    666,449.24x = 331,573,682,457.05
  5. Step 5: Solve for x
    x = 331,573,682,457.05/666,449.24
  6. Step 6: Final answer
    x = 497,522.79

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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.