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Finding the Fourth Proportional to 700,948, 967,309.10 and 378,658.09

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Solution

The fourth proportional to 700,948, 967,309.10 and 378,658.09 is: 522,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,948 : 967,309.10 = 378,658.09 : x
  2. Step 2: Convert to fraction form
    700,948/967,309.10 = 378,658.09/x
  3. Step 3: Cross multiply
    700,948x = 967,309.10 × 378,658.09
  4. Step 4: Simplify right side
    700,948x = 366,279,416,245.62
  5. Step 5: Solve for x
    x = 366,279,416,245.62/700,948
  6. Step 6: Final answer
    x = 522,548.63

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