Home / 1,855,618.05-2,778,701.94-1,222,612.77

Finding the Fourth Proportional to 1,855,618.05, 2,778,701.94 and 1,222,612.77

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Solution

The fourth proportional to 1,855,618.05, 2,778,701.94 and 1,222,612.77 is: 1,830,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,618.05 : 2,778,701.94 = 1,222,612.77 : x
  2. Step 2: Convert to fraction form
    1,855,618.05/2,778,701.94 = 1,222,612.77/x
  3. Step 3: Cross multiply
    1,855,618.05x = 2,778,701.94 × 1,222,612.77
  4. Step 4: Simplify right side
    1,855,618.05x = 3,397,276,475,867.77
  5. Step 5: Solve for x
    x = 3,397,276,475,867.77/1,855,618.05
  6. Step 6: Final answer
    x = 1,830,805.90

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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.