Home / 780,266.70-1,170,400.05-219,301.20

Finding the Fourth Proportional to 780,266.70, 1,170,400.05 and 219,301.20

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Solution

The fourth proportional to 780,266.70, 1,170,400.05 and 219,301.20 is: 328,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,266.70 : 1,170,400.05 = 219,301.20 : x
  2. Step 2: Convert to fraction form
    780,266.70/1,170,400.05 = 219,301.20/x
  3. Step 3: Cross multiply
    780,266.70x = 1,170,400.05 × 219,301.20
  4. Step 4: Simplify right side
    780,266.70x = 256,670,135,445.06
  5. Step 5: Solve for x
    x = 256,670,135,445.06/780,266.70
  6. Step 6: Final answer
    x = 328,951.80

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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.