Home / 394,934.74-545,008.30-213,646.24

Finding the Fourth Proportional to 394,934.74, 545,008.30 and 213,646.24

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Solution

The fourth proportional to 394,934.74, 545,008.30 and 213,646.24 is: 294,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,934.74 : 545,008.30 = 213,646.24 : x
  2. Step 2: Convert to fraction form
    394,934.74/545,008.30 = 213,646.24/x
  3. Step 3: Cross multiply
    394,934.74x = 545,008.30 × 213,646.24
  4. Step 4: Simplify right side
    394,934.74x = 116,438,974,063.79
  5. Step 5: Solve for x
    x = 116,438,974,063.79/394,934.74
  6. Step 6: Final answer
    x = 294,830.92

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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.