Home / 420,272.92-579,973.88-238,984.86

Finding the Fourth Proportional to 420,272.92, 579,973.88 and 238,984.86

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Solution

The fourth proportional to 420,272.92, 579,973.88 and 238,984.86 is: 329,797.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,272.92 : 579,973.88 = 238,984.86 : x
  2. Step 2: Convert to fraction form
    420,272.92/579,973.88 = 238,984.86/x
  3. Step 3: Cross multiply
    420,272.92x = 579,973.88 × 238,984.86
  4. Step 4: Simplify right side
    420,272.92x = 138,604,976,515.46
  5. Step 5: Solve for x
    x = 138,604,976,515.46/420,272.92
  6. Step 6: Final answer
    x = 329,797.54

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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.