Home / 740,219.20-1,110,847.20-319,796.80

Finding the Fourth Proportional to 740,219.20, 1,110,847.20 and 319,796.80

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Solution

The fourth proportional to 740,219.20, 1,110,847.20 and 319,796.80 is: 479,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,219.20 : 1,110,847.20 = 319,796.80 : x
  2. Step 2: Convert to fraction form
    740,219.20/1,110,847.20 = 319,796.80/x
  3. Step 3: Cross multiply
    740,219.20x = 1,110,847.20 × 319,796.80
  4. Step 4: Simplify right side
    740,219.20x = 355,245,379,848.96
  5. Step 5: Solve for x
    x = 355,245,379,848.96/740,219.20
  6. Step 6: Final answer
    x = 479,919.16

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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.