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Finding the Fourth Proportional to 667,319.00, 920,888.82 and 361,392.89

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Solution

The fourth proportional to 667,319.00, 920,888.82 and 361,392.89 is: 498,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,319.00 : 920,888.82 = 361,392.89 : x
  2. Step 2: Convert to fraction form
    667,319.00/920,888.82 = 361,392.89/x
  3. Step 3: Cross multiply
    667,319.00x = 920,888.82 × 361,392.89
  4. Step 4: Simplify right side
    667,319.00x = 332,802,667,424.05
  5. Step 5: Solve for x
    x = 332,802,667,424.05/667,319.00
  6. Step 6: Final answer
    x = 498,716.01

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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.