Home / 579,342.12-799,478.46-321,217.80

Finding the Fourth Proportional to 579,342.12, 799,478.46 and 321,217.80

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Solution

The fourth proportional to 579,342.12, 799,478.46 and 321,217.80 is: 443,272.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,342.12 : 799,478.46 = 321,217.80 : x
  2. Step 2: Convert to fraction form
    579,342.12/799,478.46 = 321,217.80/x
  3. Step 3: Cross multiply
    579,342.12x = 799,478.46 × 321,217.80
  4. Step 4: Simplify right side
    579,342.12x = 256,806,712,068.59
  5. Step 5: Solve for x
    x = 256,806,712,068.59/579,342.12
  6. Step 6: Final answer
    x = 443,272.99

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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.