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Finding the Fourth Proportional to 507,338.08, 699,313.49 and 343,944.61

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Solution

The fourth proportional to 507,338.08, 699,313.49 and 343,944.61 is: 474,092.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,338.08 : 699,313.49 = 343,944.61 : x
  2. Step 2: Convert to fraction form
    507,338.08/699,313.49 = 343,944.61/x
  3. Step 3: Cross multiply
    507,338.08x = 699,313.49 × 343,944.61
  4. Step 4: Simplify right side
    507,338.08x = 240,525,105,585.79
  5. Step 5: Solve for x
    x = 240,525,105,585.79/507,338.08
  6. Step 6: Final answer
    x = 474,092.36

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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.