Home / 1,431,900.56-1,976,030.12-787,362.32

Finding the Fourth Proportional to 1,431,900.56, 1,976,030.12 and 787,362.32

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Solution

The fourth proportional to 1,431,900.56, 1,976,030.12 and 787,362.32 is: 1,086,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,900.56 : 1,976,030.12 = 787,362.32 : x
  2. Step 2: Convert to fraction form
    1,431,900.56/1,976,030.12 = 787,362.32/x
  3. Step 3: Cross multiply
    1,431,900.56x = 1,976,030.12 × 787,362.32
  4. Step 4: Simplify right side
    1,431,900.56x = 1,555,851,659,673.08
  5. Step 5: Solve for x
    x = 1,555,851,659,673.08/1,431,900.56
  6. Step 6: Final answer
    x = 1,086,564.04

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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.