Home / 456,081.06-629,616.33-286,408.74

Finding the Fourth Proportional to 456,081.06, 629,616.33 and 286,408.74

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Solution

The fourth proportional to 456,081.06, 629,616.33 and 286,408.74 is: 395,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,081.06 : 629,616.33 = 286,408.74 : x
  2. Step 2: Convert to fraction form
    456,081.06/629,616.33 = 286,408.74/x
  3. Step 3: Cross multiply
    456,081.06x = 629,616.33 × 286,408.74
  4. Step 4: Simplify right side
    456,081.06x = 180,327,619,758.72
  5. Step 5: Solve for x
    x = 180,327,619,758.72/456,081.06
  6. Step 6: Final answer
    x = 395,385.02

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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.