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Finding the Fourth Proportional to 577,313.81, 796,679.30 and 322,688.69

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Solution

The fourth proportional to 577,313.81, 796,679.30 and 322,688.69 is: 445,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,313.81 : 796,679.30 = 322,688.69 : x
  2. Step 2: Convert to fraction form
    577,313.81/796,679.30 = 322,688.69/x
  3. Step 3: Cross multiply
    577,313.81x = 796,679.30 × 322,688.69
  4. Step 4: Simplify right side
    577,313.81x = 257,079,397,662.87
  5. Step 5: Solve for x
    x = 257,079,397,662.87/577,313.81
  6. Step 6: Final answer
    x = 445,302.70

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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.