Home / 640,783.15-961,175.64-261,703.95

Finding the Fourth Proportional to 640,783.15, 961,175.64 and 261,703.95

Calculator

Solution

The fourth proportional to 640,783.15, 961,175.64 and 261,703.95 is: 392,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,783.15 : 961,175.64 = 261,703.95 : x
  2. Step 2: Convert to fraction form
    640,783.15/961,175.64 = 261,703.95/x
  3. Step 3: Cross multiply
    640,783.15x = 961,175.64 × 261,703.95
  4. Step 4: Simplify right side
    640,783.15x = 251,543,462,327.69
  5. Step 5: Solve for x
    x = 251,543,462,327.69/640,783.15
  6. Step 6: Final answer
    x = 392,556.30

Related Problems

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.