Home / 687,477.22-948,704.29-381,535.83

Finding the Fourth Proportional to 687,477.22, 948,704.29 and 381,535.83

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Solution

The fourth proportional to 687,477.22, 948,704.29 and 381,535.83 is: 526,511.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,477.22 : 948,704.29 = 381,535.83 : x
  2. Step 2: Convert to fraction form
    687,477.22/948,704.29 = 381,535.83/x
  3. Step 3: Cross multiply
    687,477.22x = 948,704.29 × 381,535.83
  4. Step 4: Simplify right side
    687,477.22x = 361,964,678,232.79
  5. Step 5: Solve for x
    x = 361,964,678,232.79/687,477.22
  6. Step 6: Final answer
    x = 526,511.53

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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.