Home / 439,732.80-607,111.20-270,021.60

Finding the Fourth Proportional to 439,732.80, 607,111.20 and 270,021.60

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Solution

The fourth proportional to 439,732.80, 607,111.20 and 270,021.60 is: 372,801.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,732.80 : 607,111.20 = 270,021.60 : x
  2. Step 2: Convert to fraction form
    439,732.80/607,111.20 = 270,021.60/x
  3. Step 3: Cross multiply
    439,732.80x = 607,111.20 × 270,021.60
  4. Step 4: Simplify right side
    439,732.80x = 163,933,137,601.92
  5. Step 5: Solve for x
    x = 163,933,137,601.92/439,732.80
  6. Step 6: Final answer
    x = 372,801.71

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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.