Home / 810,274.16-1,215,411.78-211,233.80

Finding the Fourth Proportional to 810,274.16, 1,215,411.78 and 211,233.80

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Solution

The fourth proportional to 810,274.16, 1,215,411.78 and 211,233.80 is: 316,850.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,274.16 : 1,215,411.78 = 211,233.80 : x
  2. Step 2: Convert to fraction form
    810,274.16/1,215,411.78 = 211,233.80/x
  3. Step 3: Cross multiply
    810,274.16x = 1,215,411.78 × 211,233.80
  4. Step 4: Simplify right side
    810,274.16x = 256,736,048,854.16
  5. Step 5: Solve for x
    x = 256,736,048,854.16/810,274.16
  6. Step 6: Final answer
    x = 316,850.84

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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.