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Finding the Fourth Proportional to 577,510.11, 796,941 and 319,370.31

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Solution

The fourth proportional to 577,510.11, 796,941 and 319,370.31 is: 440,718.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,510.11 : 796,941 = 319,370.31 : x
  2. Step 2: Convert to fraction form
    577,510.11/796,941 = 319,370.31/x
  3. Step 3: Cross multiply
    577,510.11x = 796,941 × 319,370.31
  4. Step 4: Simplify right side
    577,510.11x = 254,519,294,221.71
  5. Step 5: Solve for x
    x = 254,519,294,221.71/577,510.11
  6. Step 6: Final answer
    x = 440,718.34

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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.