Home / 413,975.40-620,963.10-343,991.40

Finding the Fourth Proportional to 413,975.40, 620,963.10 and 343,991.40

Calculator

Solution

The fourth proportional to 413,975.40, 620,963.10 and 343,991.40 is: 515,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,975.40 : 620,963.10 = 343,991.40 : x
  2. Step 2: Convert to fraction form
    413,975.40/620,963.10 = 343,991.40/x
  3. Step 3: Cross multiply
    413,975.40x = 620,963.10 × 343,991.40
  4. Step 4: Simplify right side
    413,975.40x = 213,605,966,117.34
  5. Step 5: Solve for x
    x = 213,605,966,117.34/413,975.40
  6. Step 6: Final answer
    x = 515,987.10

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.