Home / 839,105.70-1,258,658.55-240,102.60

Finding the Fourth Proportional to 839,105.70, 1,258,658.55 and 240,102.60

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Solution

The fourth proportional to 839,105.70, 1,258,658.55 and 240,102.60 is: 360,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,105.70 : 1,258,658.55 = 240,102.60 : x
  2. Step 2: Convert to fraction form
    839,105.70/1,258,658.55 = 240,102.60/x
  3. Step 3: Cross multiply
    839,105.70x = 1,258,658.55 × 240,102.60
  4. Step 4: Simplify right side
    839,105.70x = 302,207,190,367.23
  5. Step 5: Solve for x
    x = 302,207,190,367.23/839,105.70
  6. Step 6: Final answer
    x = 360,153.90

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Double scale
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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.