Home / 1,079,272.16-1,618,626.34-320,909.44

Finding the Fourth Proportional to 1,079,272.16, 1,618,626.34 and 320,909.44

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Solution

The fourth proportional to 1,079,272.16, 1,618,626.34 and 320,909.44 is: 481,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,272.16 : 1,618,626.34 = 320,909.44 : x
  2. Step 2: Convert to fraction form
    1,079,272.16/1,618,626.34 = 320,909.44/x
  3. Step 3: Cross multiply
    1,079,272.16x = 1,618,626.34 × 320,909.44
  4. Step 4: Simplify right side
    1,079,272.16x = 519,432,472,338.65
  5. Step 5: Solve for x
    x = 519,432,472,338.65/1,079,272.16
  6. Step 6: Final answer
    x = 481,280.34

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1.5x scale

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.