Home / 565,830.74-780,830.81-311,182.13

Finding the Fourth Proportional to 565,830.74, 780,830.81 and 311,182.13

Calculator

Solution

The fourth proportional to 565,830.74, 780,830.81 and 311,182.13 is: 429,422.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,830.74 : 780,830.81 = 311,182.13 : x
  2. Step 2: Convert to fraction form
    565,830.74/780,830.81 = 311,182.13/x
  3. Step 3: Cross multiply
    565,830.74x = 780,830.81 × 311,182.13
  4. Step 4: Simplify right side
    565,830.74x = 242,980,594,625.43
  5. Step 5: Solve for x
    x = 242,980,594,625.43/565,830.74
  6. Step 6: Final answer
    x = 429,422.75

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.