Home / 565,844.80-780,880.80-307,739.20

Finding the Fourth Proportional to 565,844.80, 780,880.80 and 307,739.20

Calculator

Solution

The fourth proportional to 565,844.80, 780,880.80 and 307,739.20 is: 424,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,844.80 : 780,880.80 = 307,739.20 : x
  2. Step 2: Convert to fraction form
    565,844.80/780,880.80 = 307,739.20/x
  3. Step 3: Cross multiply
    565,844.80x = 780,880.80 × 307,739.20
  4. Step 4: Simplify right side
    565,844.80x = 240,307,632,687.36
  5. Step 5: Solve for x
    x = 240,307,632,687.36/565,844.80
  6. Step 6: Final answer
    x = 424,688.24

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.