Home / 780,890.40-1,171,335.60-219,924.90

Finding the Fourth Proportional to 780,890.40, 1,171,335.60 and 219,924.90

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Solution

The fourth proportional to 780,890.40, 1,171,335.60 and 219,924.90 is: 329,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,890.40 : 1,171,335.60 = 219,924.90 : x
  2. Step 2: Convert to fraction form
    780,890.40/1,171,335.60 = 219,924.90/x
  3. Step 3: Cross multiply
    780,890.40x = 1,171,335.60 × 219,924.90
  4. Step 4: Simplify right side
    780,890.40x = 257,605,864,696.44
  5. Step 5: Solve for x
    x = 257,605,864,696.44/780,890.40
  6. Step 6: Final answer
    x = 329,887.35

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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.