Home / 891,186.80-1,336,974.60-260,049.20

Finding the Fourth Proportional to 891,186.80, 1,336,974.60 and 260,049.20

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Solution

The fourth proportional to 891,186.80, 1,336,974.60 and 260,049.20 is: 390,130.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,186.80 : 1,336,974.60 = 260,049.20 : x
  2. Step 2: Convert to fraction form
    891,186.80/1,336,974.60 = 260,049.20/x
  3. Step 3: Cross multiply
    891,186.80x = 1,336,974.60 × 260,049.20
  4. Step 4: Simplify right side
    891,186.80x = 347,679,175,150.32
  5. Step 5: Solve for x
    x = 347,679,175,150.32/891,186.80
  6. Step 6: Final answer
    x = 390,130.53

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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.