Home / 1,188,935.66-1,783,465.79-905,071.43

Finding the Fourth Proportional to 1,188,935.66, 1,783,465.79 and 905,071.43

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Solution

The fourth proportional to 1,188,935.66, 1,783,465.79 and 905,071.43 is: 1,357,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,935.66 : 1,783,465.79 = 905,071.43 : x
  2. Step 2: Convert to fraction form
    1,188,935.66/1,783,465.79 = 905,071.43/x
  3. Step 3: Cross multiply
    1,188,935.66x = 1,783,465.79 × 905,071.43
  4. Step 4: Simplify right side
    1,188,935.66x = 1,614,163,932,911.38
  5. Step 5: Solve for x
    x = 1,614,163,932,911.38/1,188,935.66
  6. Step 6: Final answer
    x = 1,357,654.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.