Home / 1,247,149.08-1,721,065.05-674,190.32

Finding the Fourth Proportional to 1,247,149.08, 1,721,065.05 and 674,190.32

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Solution

The fourth proportional to 1,247,149.08, 1,721,065.05 and 674,190.32 is: 930,382.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,149.08 : 1,721,065.05 = 674,190.32 : x
  2. Step 2: Convert to fraction form
    1,247,149.08/1,721,065.05 = 674,190.32/x
  3. Step 3: Cross multiply
    1,247,149.08x = 1,721,065.05 × 674,190.32
  4. Step 4: Simplify right side
    1,247,149.08x = 1,160,325,388,194.99
  5. Step 5: Solve for x
    x = 1,160,325,388,194.99/1,247,149.08
  6. Step 6: Final answer
    x = 930,382.27

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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.