Home / 1,079,272.40-1,618,626.48-320,909.62

Finding the Fourth Proportional to 1,079,272.40, 1,618,626.48 and 320,909.62

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Solution

The fourth proportional to 1,079,272.40, 1,618,626.48 and 320,909.62 is: 481,280.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,272.40 : 1,618,626.48 = 320,909.62 : x
  2. Step 2: Convert to fraction form
    1,079,272.40/1,618,626.48 = 320,909.62/x
  3. Step 3: Cross multiply
    1,079,272.40x = 1,618,626.48 × 320,909.62
  4. Step 4: Simplify right side
    1,079,272.40x = 519,432,808,618.74
  5. Step 5: Solve for x
    x = 519,432,808,618.74/1,079,272.40
  6. Step 6: Final answer
    x = 481,280.54

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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.