Home / 565,389.23-780,228.08-310,734.95

Finding the Fourth Proportional to 565,389.23, 780,228.08 and 310,734.95

Calculator

Solution

The fourth proportional to 565,389.23, 780,228.08 and 310,734.95 is: 428,809.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,389.23 : 780,228.08 = 310,734.95 : x
  2. Step 2: Convert to fraction form
    565,389.23/780,228.08 = 310,734.95/x
  3. Step 3: Cross multiply
    565,389.23x = 780,228.08 × 310,734.95
  4. Step 4: Simplify right side
    565,389.23x = 242,444,129,137.84
  5. Step 5: Solve for x
    x = 242,444,129,137.84/565,389.23
  6. Step 6: Final answer
    x = 428,809.25

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.