Home / 839,115.10-1,258,672.65-240,095.80

Finding the Fourth Proportional to 839,115.10, 1,258,672.65 and 240,095.80

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Solution

The fourth proportional to 839,115.10, 1,258,672.65 and 240,095.80 is: 360,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,115.10 : 1,258,672.65 = 240,095.80 : x
  2. Step 2: Convert to fraction form
    839,115.10/1,258,672.65 = 240,095.80/x
  3. Step 3: Cross multiply
    839,115.10x = 1,258,672.65 × 240,095.80
  4. Step 4: Simplify right side
    839,115.10x = 302,202,016,839.87
  5. Step 5: Solve for x
    x = 302,202,016,839.87/839,115.10
  6. Step 6: Final answer
    x = 360,143.70

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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.