Home / 579,425.93-799,609.56-321,321.05

Finding the Fourth Proportional to 579,425.93, 799,609.56 and 321,321.05

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Solution

The fourth proportional to 579,425.93, 799,609.56 and 321,321.05 is: 443,424.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,425.93 : 799,609.56 = 321,321.05 : x
  2. Step 2: Convert to fraction form
    579,425.93/799,609.56 = 321,321.05/x
  3. Step 3: Cross multiply
    579,425.93x = 799,609.56 × 321,321.05
  4. Step 4: Simplify right side
    579,425.93x = 256,931,383,409.24
  5. Step 5: Solve for x
    x = 256,931,383,409.24/579,425.93
  6. Step 6: Final answer
    x = 443,424.03

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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.