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Finding the Fourth Proportional to 394,802.79, 544,826.28 and 213,514.92

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Solution

The fourth proportional to 394,802.79, 544,826.28 and 213,514.92 is: 294,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,802.79 : 544,826.28 = 213,514.92 : x
  2. Step 2: Convert to fraction form
    394,802.79/544,826.28 = 213,514.92/x
  3. Step 3: Cross multiply
    394,802.79x = 544,826.28 × 213,514.92
  4. Step 4: Simplify right side
    394,802.79x = 116,328,539,588.10
  5. Step 5: Solve for x
    x = 116,328,539,588.10/394,802.79
  6. Step 6: Final answer
    x = 294,649.74

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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.