Home / 1,188,735.83-1,640,455.43-679,449.14

Finding the Fourth Proportional to 1,188,735.83, 1,640,455.43 and 679,449.14

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Solution

The fourth proportional to 1,188,735.83, 1,640,455.43 and 679,449.14 is: 937,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,735.83 : 1,640,455.43 = 679,449.14 : x
  2. Step 2: Convert to fraction form
    1,188,735.83/1,640,455.43 = 679,449.14/x
  3. Step 3: Cross multiply
    1,188,735.83x = 1,640,455.43 × 679,449.14
  4. Step 4: Simplify right side
    1,188,735.83x = 1,114,606,019,522.31
  5. Step 5: Solve for x
    x = 1,114,606,019,522.31/1,188,735.83
  6. Step 6: Final answer
    x = 937,639.80

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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.