Home / 1,431,868.82-1,975,925.83-787,250.66

Finding the Fourth Proportional to 1,431,868.82, 1,975,925.83 and 787,250.66

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Solution

The fourth proportional to 1,431,868.82, 1,975,925.83 and 787,250.66 is: 1,086,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,868.82 : 1,975,925.83 = 787,250.66 : x
  2. Step 2: Convert to fraction form
    1,431,868.82/1,975,925.83 = 787,250.66/x
  3. Step 3: Cross multiply
    1,431,868.82x = 1,975,925.83 × 787,250.66
  4. Step 4: Simplify right side
    1,431,868.82x = 1,555,548,913,778.55
  5. Step 5: Solve for x
    x = 1,555,548,913,778.55/1,431,868.82
  6. Step 6: Final answer
    x = 1,086,376.69

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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.