Home / 780,336.10-1,170,504.15-219,370.60

Finding the Fourth Proportional to 780,336.10, 1,170,504.15 and 219,370.60

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Solution

The fourth proportional to 780,336.10, 1,170,504.15 and 219,370.60 is: 329,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,336.10 : 1,170,504.15 = 219,370.60 : x
  2. Step 2: Convert to fraction form
    780,336.10/1,170,504.15 = 219,370.60/x
  3. Step 3: Cross multiply
    780,336.10x = 1,170,504.15 × 219,370.60
  4. Step 4: Simplify right side
    780,336.10x = 256,774,197,687.99
  5. Step 5: Solve for x
    x = 256,774,197,687.99/780,336.10
  6. Step 6: Final answer
    x = 329,055.90

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Similar ratio
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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.