Home / 1,320,310.80-1,822,022.10-716,698.80

Finding the Fourth Proportional to 1,320,310.80, 1,822,022.10 and 716,698.80

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Solution

The fourth proportional to 1,320,310.80, 1,822,022.10 and 716,698.80 is: 989,040.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,310.80 : 1,822,022.10 = 716,698.80 : x
  2. Step 2: Convert to fraction form
    1,320,310.80/1,822,022.10 = 716,698.80/x
  3. Step 3: Cross multiply
    1,320,310.80x = 1,822,022.10 × 716,698.80
  4. Step 4: Simplify right side
    1,320,310.80x = 1,305,841,052,643.48
  5. Step 5: Solve for x
    x = 1,305,841,052,643.48/1,320,310.80
  6. Step 6: Final answer
    x = 989,040.65

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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.