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Finding the Fourth Proportional to 577,270.20, 796,641.90 and 322,637.88

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Solution

The fourth proportional to 577,270.20, 796,641.90 and 322,637.88 is: 445,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,270.20 : 796,641.90 = 322,637.88 : x
  2. Step 2: Convert to fraction form
    577,270.20/796,641.90 = 322,637.88/x
  3. Step 3: Cross multiply
    577,270.20x = 796,641.90 × 322,637.88
  4. Step 4: Simplify right side
    577,270.20x = 257,026,853,735.17
  5. Step 5: Solve for x
    x = 257,026,853,735.17/577,270.20
  6. Step 6: Final answer
    x = 445,245.32

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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.