Home / 1,079,271.90-1,618,625.72-320,909.13

Finding the Fourth Proportional to 1,079,271.90, 1,618,625.72 and 320,909.13

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Solution

The fourth proportional to 1,079,271.90, 1,618,625.72 and 320,909.13 is: 481,279.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,271.90 : 1,618,625.72 = 320,909.13 : x
  2. Step 2: Convert to fraction form
    1,079,271.90/1,618,625.72 = 320,909.13/x
  3. Step 3: Cross multiply
    1,079,271.90x = 1,618,625.72 × 320,909.13
  4. Step 4: Simplify right side
    1,079,271.90x = 519,431,769,996.28
  5. Step 5: Solve for x
    x = 519,431,769,996.28/1,079,271.90
  6. Step 6: Final answer
    x = 481,279.81

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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.