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Finding the Fourth Proportional to 394,802.79, 544,826.27 and 213,514.91

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Solution

The fourth proportional to 394,802.79, 544,826.27 and 213,514.91 is: 294,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,802.79 : 544,826.27 = 213,514.91 : x
  2. Step 2: Convert to fraction form
    394,802.79/544,826.27 = 213,514.91/x
  3. Step 3: Cross multiply
    394,802.79x = 544,826.27 × 213,514.91
  4. Step 4: Simplify right side
    394,802.79x = 116,328,528,212.98
  5. Step 5: Solve for x
    x = 116,328,528,212.98/394,802.79
  6. Step 6: Final answer
    x = 294,649.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.