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Finding the Fourth Proportional to 577,127.28, 796,433.95 and 322,478.67

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Solution

The fourth proportional to 577,127.28, 796,433.95 and 322,478.67 is: 445,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,127.28 : 796,433.95 = 322,478.67 : x
  2. Step 2: Convert to fraction form
    577,127.28/796,433.95 = 322,478.67/x
  3. Step 3: Cross multiply
    577,127.28x = 796,433.95 × 322,478.67
  4. Step 4: Simplify right side
    577,127.28x = 256,832,960,938.85
  5. Step 5: Solve for x
    x = 256,832,960,938.85/577,127.28
  6. Step 6: Final answer
    x = 445,019.62

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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.