Home / 667,623.50-921,320.43-365,811.02

Finding the Fourth Proportional to 667,623.50, 921,320.43 and 365,811.02

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Solution

The fourth proportional to 667,623.50, 921,320.43 and 365,811.02 is: 504,819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,623.50 : 921,320.43 = 365,811.02 : x
  2. Step 2: Convert to fraction form
    667,623.50/921,320.43 = 365,811.02/x
  3. Step 3: Cross multiply
    667,623.50x = 921,320.43 × 365,811.02
  4. Step 4: Simplify right side
    667,623.50x = 337,029,166,245.14
  5. Step 5: Solve for x
    x = 337,029,166,245.14/667,623.50
  6. Step 6: Final answer
    x = 504,819.21

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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.