Home / 557,103.62-768,850.58-315,428.78

Finding the Fourth Proportional to 557,103.62, 768,850.58 and 315,428.78

Calculator

Solution

The fourth proportional to 557,103.62, 768,850.58 and 315,428.78 is: 435,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,103.62 : 768,850.58 = 315,428.78 : x
  2. Step 2: Convert to fraction form
    557,103.62/768,850.58 = 315,428.78/x
  3. Step 3: Cross multiply
    557,103.62x = 768,850.58 × 315,428.78
  4. Step 4: Simplify right side
    557,103.62x = 242,517,600,451.69
  5. Step 5: Solve for x
    x = 242,517,600,451.69/557,103.62
  6. Step 6: Final answer
    x = 435,318.66

Related Problems

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.