Home / 1,320,133.92-1,821,736.08-716,508.96

Finding the Fourth Proportional to 1,320,133.92, 1,821,736.08 and 716,508.96

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Solution

The fourth proportional to 1,320,133.92, 1,821,736.08 and 716,508.96 is: 988,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,133.92 : 1,821,736.08 = 716,508.96 : x
  2. Step 2: Convert to fraction form
    1,320,133.92/1,821,736.08 = 716,508.96/x
  3. Step 3: Cross multiply
    1,320,133.92x = 1,821,736.08 × 716,508.96
  4. Step 4: Simplify right side
    1,320,133.92x = 1,305,290,224,075.28
  5. Step 5: Solve for x
    x = 1,305,290,224,075.28/1,320,133.92
  6. Step 6: Final answer
    x = 988,755.92

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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.