Home / 1,320,086.66-1,821,407.35-747,126.81

Finding the Fourth Proportional to 1,320,086.66, 1,821,407.35 and 747,126.81

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Solution

The fourth proportional to 1,320,086.66, 1,821,407.35 and 747,126.81 is: 1,030,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,086.66 : 1,821,407.35 = 747,126.81 : x
  2. Step 2: Convert to fraction form
    1,320,086.66/1,821,407.35 = 747,126.81/x
  3. Step 3: Cross multiply
    1,320,086.66x = 1,821,407.35 × 747,126.81
  4. Step 4: Simplify right side
    1,320,086.66x = 1,360,822,263,116.05
  5. Step 5: Solve for x
    x = 1,360,822,263,116.05/1,320,086.66
  6. Step 6: Final answer
    x = 1,030,858.28

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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.