Home / 572,377.75-789,991.23-378,789.37

Finding the Fourth Proportional to 572,377.75, 789,991.23 and 378,789.37

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Solution

The fourth proportional to 572,377.75, 789,991.23 and 378,789.37 is: 522,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,377.75 : 789,991.23 = 378,789.37 : x
  2. Step 2: Convert to fraction form
    572,377.75/789,991.23 = 378,789.37/x
  3. Step 3: Cross multiply
    572,377.75x = 789,991.23 × 378,789.37
  4. Step 4: Simplify right side
    572,377.75x = 299,240,280,317.23
  5. Step 5: Solve for x
    x = 299,240,280,317.23/572,377.75
  6. Step 6: Final answer
    x = 522,802.08

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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.