Home / 724,405.22-1,086,647.81-218,953.47

Finding the Fourth Proportional to 724,405.22, 1,086,647.81 and 218,953.47

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Solution

The fourth proportional to 724,405.22, 1,086,647.81 and 218,953.47 is: 328,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,405.22 : 1,086,647.81 = 218,953.47 : x
  2. Step 2: Convert to fraction form
    724,405.22/1,086,647.81 = 218,953.47/x
  3. Step 3: Cross multiply
    724,405.22x = 1,086,647.81 × 218,953.47
  4. Step 4: Simplify right side
    724,405.22x = 237,925,311,647.56
  5. Step 5: Solve for x
    x = 237,925,311,647.56/724,405.22
  6. Step 6: Final answer
    x = 328,442.29

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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.