Home / 1,431,634.91-1,975,657.43-787,066.07

Finding the Fourth Proportional to 1,431,634.91, 1,975,657.43 and 787,066.07

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Solution

The fourth proportional to 1,431,634.91, 1,975,657.43 and 787,066.07 is: 1,086,151.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,634.91 : 1,975,657.43 = 787,066.07 : x
  2. Step 2: Convert to fraction form
    1,431,634.91/1,975,657.43 = 787,066.07/x
  3. Step 3: Cross multiply
    1,431,634.91x = 1,975,657.43 × 787,066.07
  4. Step 4: Simplify right side
    1,431,634.91x = 1,554,972,921,185.78
  5. Step 5: Solve for x
    x = 1,554,972,921,185.78/1,431,634.91
  6. Step 6: Final answer
    x = 1,086,151.86

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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.