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Finding the Fourth Proportional to 577,366.31, 796,751.33 and 319,236.45

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Solution

The fourth proportional to 577,366.31, 796,751.33 and 319,236.45 is: 440,538.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,366.31 : 796,751.33 = 319,236.45 : x
  2. Step 2: Convert to fraction form
    577,366.31/796,751.33 = 319,236.45/x
  3. Step 3: Cross multiply
    577,366.31x = 796,751.33 × 319,236.45
  4. Step 4: Simplify right side
    577,366.31x = 254,352,064,525.80
  5. Step 5: Solve for x
    x = 254,352,064,525.80/577,366.31
  6. Step 6: Final answer
    x = 440,538.46

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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.