Home / 711,012.48-981,197.76-388,717.44

Finding the Fourth Proportional to 711,012.48, 981,197.76 and 388,717.44

Calculator

Solution

The fourth proportional to 711,012.48, 981,197.76 and 388,717.44 is: 536,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,012.48 : 981,197.76 = 388,717.44 : x
  2. Step 2: Convert to fraction form
    711,012.48/981,197.76 = 388,717.44/x
  3. Step 3: Cross multiply
    711,012.48x = 981,197.76 × 388,717.44
  4. Step 4: Simplify right side
    711,012.48x = 381,408,681,400.93
  5. Step 5: Solve for x
    x = 381,408,681,400.93/711,012.48
  6. Step 6: Final answer
    x = 536,430.36

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.