Home / 579,388.26-869,331.51-280,093.89

Finding the Fourth Proportional to 579,388.26, 869,331.51 and 280,093.89

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Solution

The fourth proportional to 579,388.26, 869,331.51 and 280,093.89 is: 420,261.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,388.26 : 869,331.51 = 280,093.89 : x
  2. Step 2: Convert to fraction form
    579,388.26/869,331.51 = 280,093.89/x
  3. Step 3: Cross multiply
    579,388.26x = 869,331.51 × 280,093.89
  4. Step 4: Simplify right side
    579,388.26x = 243,494,446,807.70
  5. Step 5: Solve for x
    x = 243,494,446,807.70/579,388.26
  6. Step 6: Final answer
    x = 420,261.27

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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.