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Finding the Fourth Proportional to 577,628.28, 797,127.21 and 322,980.21

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Solution

The fourth proportional to 577,628.28, 797,127.21 and 322,980.21 is: 445,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,628.28 : 797,127.21 = 322,980.21 : x
  2. Step 2: Convert to fraction form
    577,628.28/797,127.21 = 322,980.21/x
  3. Step 3: Cross multiply
    577,628.28x = 797,127.21 × 322,980.21
  4. Step 4: Simplify right side
    577,628.28x = 257,456,313,682.51
  5. Step 5: Solve for x
    x = 257,456,313,682.51/577,628.28
  6. Step 6: Final answer
    x = 445,712.79

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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.