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Finding the Fourth Proportional to 888,408.10, 1,225,998.57 and 480,509.51

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Solution

The fourth proportional to 888,408.10, 1,225,998.57 and 480,509.51 is: 663,100.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,408.10 : 1,225,998.57 = 480,509.51 : x
  2. Step 2: Convert to fraction form
    888,408.10/1,225,998.57 = 480,509.51/x
  3. Step 3: Cross multiply
    888,408.10x = 1,225,998.57 × 480,509.51
  4. Step 4: Simplify right side
    888,408.10x = 589,103,969,728.85
  5. Step 5: Solve for x
    x = 589,103,969,728.85/888,408.10
  6. Step 6: Final answer
    x = 663,100.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.