Home / 740,479.20-1,111,237.20-320,056.80

Finding the Fourth Proportional to 740,479.20, 1,111,237.20 and 320,056.80

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Solution

The fourth proportional to 740,479.20, 1,111,237.20 and 320,056.80 is: 480,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,479.20 : 1,111,237.20 = 320,056.80 : x
  2. Step 2: Convert to fraction form
    740,479.20/1,111,237.20 = 320,056.80/x
  3. Step 3: Cross multiply
    740,479.20x = 1,111,237.20 × 320,056.80
  4. Step 4: Simplify right side
    740,479.20x = 355,659,022,272.96
  5. Step 5: Solve for x
    x = 355,659,022,272.96/740,479.20
  6. Step 6: Final answer
    x = 480,309.27

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Double scale
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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.