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Finding the Fourth Proportional to 619,287.32, 854,797.98 and 404,460.80

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Solution

The fourth proportional to 619,287.32, 854,797.98 and 404,460.80 is: 558,274.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,287.32 : 854,797.98 = 404,460.80 : x
  2. Step 2: Convert to fraction form
    619,287.32/854,797.98 = 404,460.80/x
  3. Step 3: Cross multiply
    619,287.32x = 854,797.98 × 404,460.80
  4. Step 4: Simplify right side
    619,287.32x = 345,732,274,829.18
  5. Step 5: Solve for x
    x = 345,732,274,829.18/619,287.32
  6. Step 6: Final answer
    x = 558,274.43

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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.