Home / 918,961.23-1,375,620.32-832,356.03

Finding the Fourth Proportional to 918,961.23, 1,375,620.32 and 832,356.03

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Solution

The fourth proportional to 918,961.23, 1,375,620.32 and 832,356.03 is: 1,245,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,961.23 : 1,375,620.32 = 832,356.03 : x
  2. Step 2: Convert to fraction form
    918,961.23/1,375,620.32 = 832,356.03/x
  3. Step 3: Cross multiply
    918,961.23x = 1,375,620.32 × 832,356.03
  4. Step 4: Simplify right side
    918,961.23x = 1,145,005,870,899.99
  5. Step 5: Solve for x
    x = 1,145,005,870,899.99/918,961.23
  6. Step 6: Final answer
    x = 1,245,978.43

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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.