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Finding the Fourth Proportional to 284,508.94, 426,785.19 and 84,814.06

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Solution

The fourth proportional to 284,508.94, 426,785.19 and 84,814.06 is: 127,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,508.94 : 426,785.19 = 84,814.06 : x
  2. Step 2: Convert to fraction form
    284,508.94/426,785.19 = 84,814.06/x
  3. Step 3: Cross multiply
    284,508.94x = 426,785.19 × 84,814.06
  4. Step 4: Simplify right side
    284,508.94x = 36,197,384,711.77
  5. Step 5: Solve for x
    x = 36,197,384,711.77/284,508.94
  6. Step 6: Final answer
    x = 127,227.58

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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.