Home / 810,276.16-1,215,414.80-211,235.80

Finding the Fourth Proportional to 810,276.16, 1,215,414.80 and 211,235.80

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Solution

The fourth proportional to 810,276.16, 1,215,414.80 and 211,235.80 is: 316,853.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,276.16 : 1,215,414.80 = 211,235.80 : x
  2. Step 2: Convert to fraction form
    810,276.16/1,215,414.80 = 211,235.80/x
  3. Step 3: Cross multiply
    810,276.16x = 1,215,414.80 × 211,235.80
  4. Step 4: Simplify right side
    810,276.16x = 256,739,117,609.84
  5. Step 5: Solve for x
    x = 256,739,117,609.84/810,276.16
  6. Step 6: Final answer
    x = 316,853.85

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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.