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Finding the Fourth Proportional to 519,814.80, 779,333.40 and 283,424.40

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Solution

The fourth proportional to 519,814.80, 779,333.40 and 283,424.40 is: 424,924.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,814.80 : 779,333.40 = 283,424.40 : x
  2. Step 2: Convert to fraction form
    519,814.80/779,333.40 = 283,424.40/x
  3. Step 3: Cross multiply
    519,814.80x = 779,333.40 × 283,424.40
  4. Step 4: Simplify right side
    519,814.80x = 220,882,101,294.96
  5. Step 5: Solve for x
    x = 220,882,101,294.96/519,814.80
  6. Step 6: Final answer
    x = 424,924.61

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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.