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Finding the Fourth Proportional to 577,271.20, 796,643.28 and 322,638.88

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Solution

The fourth proportional to 577,271.20, 796,643.28 and 322,638.88 is: 445,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,271.20 : 796,643.28 = 322,638.88 : x
  2. Step 2: Convert to fraction form
    577,271.20/796,643.28 = 322,638.88/x
  3. Step 3: Cross multiply
    577,271.20x = 796,643.28 × 322,638.88
  4. Step 4: Simplify right side
    577,271.20x = 257,028,095,618.73
  5. Step 5: Solve for x
    x = 257,028,095,618.73/577,271.20
  6. Step 6: Final answer
    x = 445,246.70

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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.