Home / 905,815.08-1,356,788.16-690,186.60

Finding the Fourth Proportional to 905,815.08, 1,356,788.16 and 690,186.60

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Solution

The fourth proportional to 905,815.08, 1,356,788.16 and 690,186.60 is: 1,033,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,815.08 : 1,356,788.16 = 690,186.60 : x
  2. Step 2: Convert to fraction form
    905,815.08/1,356,788.16 = 690,186.60/x
  3. Step 3: Cross multiply
    905,815.08x = 1,356,788.16 × 690,186.60
  4. Step 4: Simplify right side
    905,815.08x = 936,437,007,070.66
  5. Step 5: Solve for x
    x = 936,437,007,070.66/905,815.08
  6. Step 6: Final answer
    x = 1,033,805.94

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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.