Home / 1,505,314.31-2,079,057.83-991,365.66

Finding the Fourth Proportional to 1,505,314.31, 2,079,057.83 and 991,365.66

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Solution

The fourth proportional to 1,505,314.31, 2,079,057.83 and 991,365.66 is: 1,369,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,314.31 : 2,079,057.83 = 991,365.66 : x
  2. Step 2: Convert to fraction form
    1,505,314.31/2,079,057.83 = 991,365.66/x
  3. Step 3: Cross multiply
    1,505,314.31x = 2,079,057.83 × 991,365.66
  4. Step 4: Simplify right side
    1,505,314.31x = 2,061,106,532,859.29
  5. Step 5: Solve for x
    x = 2,061,106,532,859.29/1,505,314.31
  6. Step 6: Final answer
    x = 1,369,220.05

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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.