Home / 355,680-770,409

Finding the Third Proportional to 355,680 and 770,409

Calculator

Solution

The third proportional to 355,680 and 770,409 is: 1,668,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,680 : 770,409 = 770,409 : x
  2. Step 2: Convert to fraction form
    355,680/770,409 = 770,409/x
  3. Step 3: Cross multiply
    355,680x = 770,409 × 770,409
  4. Step 4: Simplify right side
    355,680x = 593,530,027,281
  5. Step 5: Solve for x
    x = 593,530,027,281/355,680
  6. Step 6: Final answer
    x = 1,668,719.15

Related Problems

Find third proportional to 177,840 and 385,204.50
Half scale
Find third proportional to 711,360 and 1,540,818
Double scale
Find third proportional to 355,682 and 770,413
Similar ratio
Find third proportional to 533,520 and 1,155,613.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.