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Finding the Fourth Proportional to 579,357.55, 799,596.14 and 321,291.88

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Solution

The fourth proportional to 579,357.55, 799,596.14 and 321,291.88 is: 443,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,357.55 : 799,596.14 = 321,291.88 : x
  2. Step 2: Convert to fraction form
    579,357.55/799,596.14 = 321,291.88/x
  3. Step 3: Cross multiply
    579,357.55x = 799,596.14 × 321,291.88
  4. Step 4: Simplify right side
    579,357.55x = 256,903,749,760.89
  5. Step 5: Solve for x
    x = 256,903,749,760.89/579,357.55
  6. Step 6: Final answer
    x = 443,428.68

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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.