Home / 1,188,878.85-1,783,453.59-431,077.23

Finding the Fourth Proportional to 1,188,878.85, 1,783,453.59 and 431,077.23

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Solution

The fourth proportional to 1,188,878.85, 1,783,453.59 and 431,077.23 is: 646,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,878.85 : 1,783,453.59 = 431,077.23 : x
  2. Step 2: Convert to fraction form
    1,188,878.85/1,783,453.59 = 431,077.23/x
  3. Step 3: Cross multiply
    1,188,878.85x = 1,783,453.59 × 431,077.23
  4. Step 4: Simplify right side
    1,188,878.85x = 768,806,233,410.76
  5. Step 5: Solve for x
    x = 768,806,233,410.76/1,188,878.85
  6. Step 6: Final answer
    x = 646,664.91

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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.