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Finding the Fourth Proportional to 577,282.83, 796,615.98 and 319,144.31

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Solution

The fourth proportional to 577,282.83, 796,615.98 and 319,144.31 is: 440,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,282.83 : 796,615.98 = 319,144.31 : x
  2. Step 2: Convert to fraction form
    577,282.83/796,615.98 = 319,144.31/x
  3. Step 3: Cross multiply
    577,282.83x = 796,615.98 × 319,144.31
  4. Step 4: Simplify right side
    577,282.83x = 254,235,453,288.99
  5. Step 5: Solve for x
    x = 254,235,453,288.99/577,282.83
  6. Step 6: Final answer
    x = 440,400.16

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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.