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Finding the Fourth Proportional to 700,727.60, 967,003.85 and 378,437.77

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Solution

The fourth proportional to 700,727.60, 967,003.85 and 378,437.77 is: 522,243.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,727.60 : 967,003.85 = 378,437.77 : x
  2. Step 2: Convert to fraction form
    700,727.60/967,003.85 = 378,437.77/x
  3. Step 3: Cross multiply
    700,727.60x = 967,003.85 × 378,437.77
  4. Step 4: Simplify right side
    700,727.60x = 365,950,775,740.40
  5. Step 5: Solve for x
    x = 365,950,775,740.40/700,727.60
  6. Step 6: Final answer
    x = 522,243.99

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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.