Home / 377,178-813,405

Finding the Third Proportional to 377,178 and 813,405

Calculator

Solution

The third proportional to 377,178 and 813,405 is: 1,754,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,178 : 813,405 = 813,405 : x
  2. Step 2: Convert to fraction form
    377,178/813,405 = 813,405/x
  3. Step 3: Cross multiply
    377,178x = 813,405 × 813,405
  4. Step 4: Simplify right side
    377,178x = 661,627,694,025
  5. Step 5: Solve for x
    x = 661,627,694,025/377,178
  6. Step 6: Final answer
    x = 1,754,152.40

Related Problems

Find third proportional to 188,589 and 406,702.50
Half scale
Find third proportional to 754,356 and 1,626,810
Double scale
Find third proportional to 377,180 and 813,409
Similar ratio
Find third proportional to 565,767 and 1,220,107.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.