Home / 821,223.46-1,231,838.08-252,600.72

Finding the Fourth Proportional to 821,223.46, 1,231,838.08 and 252,600.72

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Solution

The fourth proportional to 821,223.46, 1,231,838.08 and 252,600.72 is: 378,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,223.46 : 1,231,838.08 = 252,600.72 : x
  2. Step 2: Convert to fraction form
    821,223.46/1,231,838.08 = 252,600.72/x
  3. Step 3: Cross multiply
    821,223.46x = 1,231,838.08 × 252,600.72
  4. Step 4: Simplify right side
    821,223.46x = 311,163,185,931.42
  5. Step 5: Solve for x
    x = 311,163,185,931.42/821,223.46
  6. Step 6: Final answer
    x = 378,901.97

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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.