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Finding the Fourth Proportional to 578,842.24, 868,559.52 and 275,579.26

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Solution

The fourth proportional to 578,842.24, 868,559.52 and 275,579.26 is: 413,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,842.24 : 868,559.52 = 275,579.26 : x
  2. Step 2: Convert to fraction form
    578,842.24/868,559.52 = 275,579.26/x
  3. Step 3: Cross multiply
    578,842.24x = 868,559.52 × 275,579.26
  4. Step 4: Simplify right side
    578,842.24x = 239,356,989,787.56
  5. Step 5: Solve for x
    x = 239,356,989,787.56/578,842.24
  6. Step 6: Final answer
    x = 413,509.89

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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.