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Finding the Fourth Proportional to 579,097.98, 799,203.09 and 321,055.90

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Solution

The fourth proportional to 579,097.98, 799,203.09 and 321,055.90 is: 443,083.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,097.98 : 799,203.09 = 321,055.90 : x
  2. Step 2: Convert to fraction form
    579,097.98/799,203.09 = 321,055.90/x
  3. Step 3: Cross multiply
    579,097.98x = 799,203.09 × 321,055.90
  4. Step 4: Simplify right side
    579,097.98x = 256,588,861,741.44
  5. Step 5: Solve for x
    x = 256,588,861,741.44/579,097.98
  6. Step 6: Final answer
    x = 443,083.68

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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.