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Finding the Fourth Proportional to 579,443.44, 799,633.70 and 321,338.56

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Solution

The fourth proportional to 579,443.44, 799,633.70 and 321,338.56 is: 443,448.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,443.44 : 799,633.70 = 321,338.56 : x
  2. Step 2: Convert to fraction form
    579,443.44/799,633.70 = 321,338.56/x
  3. Step 3: Cross multiply
    579,443.44x = 799,633.70 × 321,338.56
  4. Step 4: Simplify right side
    579,443.44x = 256,953,141,685.47
  5. Step 5: Solve for x
    x = 256,953,141,685.47/579,443.44
  6. Step 6: Final answer
    x = 443,448.18

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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.