Home / 579,302.77-799,485.16-321,260.53

Finding the Fourth Proportional to 579,302.77, 799,485.16 and 321,260.53

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Solution

The fourth proportional to 579,302.77, 799,485.16 and 321,260.53 is: 443,365.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,302.77 : 799,485.16 = 321,260.53 : x
  2. Step 2: Convert to fraction form
    579,302.77/799,485.16 = 321,260.53/x
  3. Step 3: Cross multiply
    579,302.77x = 799,485.16 × 321,260.53
  4. Step 4: Simplify right side
    579,302.77x = 256,843,022,231.31
  5. Step 5: Solve for x
    x = 256,843,022,231.31/579,302.77
  6. Step 6: Final answer
    x = 443,365.78

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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.