Home / 1,355,690.91-1,870,887.89-743,843.51

Finding the Fourth Proportional to 1,355,690.91, 1,870,887.89 and 743,843.51

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Solution

The fourth proportional to 1,355,690.91, 1,870,887.89 and 743,843.51 is: 1,026,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,690.91 : 1,870,887.89 = 743,843.51 : x
  2. Step 2: Convert to fraction form
    1,355,690.91/1,870,887.89 = 743,843.51/x
  3. Step 3: Cross multiply
    1,355,690.91x = 1,870,887.89 × 743,843.51
  4. Step 4: Simplify right side
    1,355,690.91x = 1,391,647,824,958.84
  5. Step 5: Solve for x
    x = 1,391,647,824,958.84/1,355,690.91
  6. Step 6: Final answer
    x = 1,026,522.94

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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.