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Finding the Fourth Proportional to 577,662.93, 797,113.49 and 319,498.88

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Solution

The fourth proportional to 577,662.93, 797,113.49 and 319,498.88 is: 440,874.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,662.93 : 797,113.49 = 319,498.88 : x
  2. Step 2: Convert to fraction form
    577,662.93/797,113.49 = 319,498.88/x
  3. Step 3: Cross multiply
    577,662.93x = 797,113.49 × 319,498.88
  4. Step 4: Simplify right side
    577,662.93x = 254,676,861,704.83
  5. Step 5: Solve for x
    x = 254,676,861,704.83/577,662.93
  6. Step 6: Final answer
    x = 440,874.51

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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.