Home / 3,219,903.72-4,829,806.40-823,728.12

Finding the Fourth Proportional to 3,219,903.72, 4,829,806.40 and 823,728.12

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Solution

The fourth proportional to 3,219,903.72, 4,829,806.40 and 823,728.12 is: 1,235,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,219,903.72 : 4,829,806.40 = 823,728.12 : x
  2. Step 2: Convert to fraction form
    3,219,903.72/4,829,806.40 = 823,728.12/x
  3. Step 3: Cross multiply
    3,219,903.72x = 4,829,806.40 × 823,728.12
  4. Step 4: Simplify right side
    3,219,903.72x = 3,978,447,345,835.97
  5. Step 5: Solve for x
    x = 3,978,447,345,835.97/3,219,903.72
  6. Step 6: Final answer
    x = 1,235,579.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.