Home / 579,355.27-799,592.66-321,289.61

Finding the Fourth Proportional to 579,355.27, 799,592.66 and 321,289.61

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Solution

The fourth proportional to 579,355.27, 799,592.66 and 321,289.61 is: 443,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,355.27 : 799,592.66 = 321,289.61 : x
  2. Step 2: Convert to fraction form
    579,355.27/799,592.66 = 321,289.61/x
  3. Step 3: Cross multiply
    579,355.27x = 799,592.66 × 321,289.61
  4. Step 4: Simplify right side
    579,355.27x = 256,900,810,951.42
  5. Step 5: Solve for x
    x = 256,900,810,951.42/579,355.27
  6. Step 6: Final answer
    x = 443,425.35

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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.