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Finding the Fourth Proportional to 578,745.63, 798,660.33 and 320,622.03

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Solution

The fourth proportional to 578,745.63, 798,660.33 and 320,622.03 is: 442,453.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,745.63 : 798,660.33 = 320,622.03 : x
  2. Step 2: Convert to fraction form
    578,745.63/798,660.33 = 320,622.03/x
  3. Step 3: Cross multiply
    578,745.63x = 798,660.33 × 320,622.03
  4. Step 4: Simplify right side
    578,745.63x = 256,068,096,285.07
  5. Step 5: Solve for x
    x = 256,068,096,285.07/578,745.63
  6. Step 6: Final answer
    x = 442,453.62

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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.