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Finding the Fourth Proportional to 619,276.80, 854,668.80 and 350,976

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Solution

The fourth proportional to 619,276.80, 854,668.80 and 350,976 is: 484,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,276.80 : 854,668.80 = 350,976 : x
  2. Step 2: Convert to fraction form
    619,276.80/854,668.80 = 350,976/x
  3. Step 3: Cross multiply
    619,276.80x = 854,668.80 × 350,976
  4. Step 4: Simplify right side
    619,276.80x = 299,968,236,748.80
  5. Step 5: Solve for x
    x = 299,968,236,748.80/619,276.80
  6. Step 6: Final answer
    x = 484,384.75

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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.