Home / 686,954.22-948,110.35-381,129.10

Finding the Fourth Proportional to 686,954.22, 948,110.35 and 381,129.10

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Solution

The fourth proportional to 686,954.22, 948,110.35 and 381,129.10 is: 526,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,954.22 : 948,110.35 = 381,129.10 : x
  2. Step 2: Convert to fraction form
    686,954.22/948,110.35 = 381,129.10/x
  3. Step 3: Cross multiply
    686,954.22x = 948,110.35 × 381,129.10
  4. Step 4: Simplify right side
    686,954.22x = 361,352,444,396.19
  5. Step 5: Solve for x
    x = 361,352,444,396.19/686,954.22
  6. Step 6: Final answer
    x = 526,021.14

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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.