Home / 1,079,279.75-1,618,637.43-320,916.98

Finding the Fourth Proportional to 1,079,279.75, 1,618,637.43 and 320,916.98

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Solution

The fourth proportional to 1,079,279.75, 1,618,637.43 and 320,916.98 is: 481,291.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,279.75 : 1,618,637.43 = 320,916.98 : x
  2. Step 2: Convert to fraction form
    1,079,279.75/1,618,637.43 = 320,916.98/x
  3. Step 3: Cross multiply
    1,079,279.75x = 1,618,637.43 × 320,916.98
  4. Step 4: Simplify right side
    1,079,279.75x = 519,448,235,750.56
  5. Step 5: Solve for x
    x = 519,448,235,750.56/1,079,279.75
  6. Step 6: Final answer
    x = 481,291.56

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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.