Home / 780,240.35-1,170,360.51-219,274.85

Finding the Fourth Proportional to 780,240.35, 1,170,360.51 and 219,274.85

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Solution

The fourth proportional to 780,240.35, 1,170,360.51 and 219,274.85 is: 328,912.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,240.35 : 1,170,360.51 = 219,274.85 : x
  2. Step 2: Convert to fraction form
    780,240.35/1,170,360.51 = 219,274.85/x
  3. Step 3: Cross multiply
    780,240.35x = 1,170,360.51 × 219,274.85
  4. Step 4: Simplify right side
    780,240.35x = 256,630,623,265.04
  5. Step 5: Solve for x
    x = 256,630,623,265.04/780,240.35
  6. Step 6: Final answer
    x = 328,912.27

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Similar ratio
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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.