Home / 840,406.41-1,260,439.52-307,745.55

Finding the Fourth Proportional to 840,406.41, 1,260,439.52 and 307,745.55

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Solution

The fourth proportional to 840,406.41, 1,260,439.52 and 307,745.55 is: 461,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,406.41 : 1,260,439.52 = 307,745.55 : x
  2. Step 2: Convert to fraction form
    840,406.41/1,260,439.52 = 307,745.55/x
  3. Step 3: Cross multiply
    840,406.41x = 1,260,439.52 × 307,745.55
  4. Step 4: Simplify right side
    840,406.41x = 387,894,651,785.41
  5. Step 5: Solve for x
    x = 387,894,651,785.41/840,406.41
  6. Step 6: Final answer
    x = 461,556.04

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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.