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Finding the Fourth Proportional to 519,808.44, 779,960.52 and 283,145.88

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Solution

The fourth proportional to 519,808.44, 779,960.52 and 283,145.88 is: 424,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,808.44 : 779,960.52 = 283,145.88 : x
  2. Step 2: Convert to fraction form
    519,808.44/779,960.52 = 283,145.88/x
  3. Step 3: Cross multiply
    519,808.44x = 779,960.52 × 283,145.88
  4. Step 4: Simplify right side
    519,808.44x = 220,842,607,800.66
  5. Step 5: Solve for x
    x = 220,842,607,800.66/519,808.44
  6. Step 6: Final answer
    x = 424,853.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.