Home / 891,179.80-1,336,964.10-260,042.20

Finding the Fourth Proportional to 891,179.80, 1,336,964.10 and 260,042.20

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Solution

The fourth proportional to 891,179.80, 1,336,964.10 and 260,042.20 is: 390,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,179.80 : 1,336,964.10 = 260,042.20 : x
  2. Step 2: Convert to fraction form
    891,179.80/1,336,964.10 = 260,042.20/x
  3. Step 3: Cross multiply
    891,179.80x = 1,336,964.10 × 260,042.20
  4. Step 4: Simplify right side
    891,179.80x = 347,667,085,885.02
  5. Step 5: Solve for x
    x = 347,667,085,885.02/891,179.80
  6. Step 6: Final answer
    x = 390,120.03

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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.