Home / 306,738-656,120

Finding the Third Proportional to 306,738 and 656,120

Calculator

Solution

The third proportional to 306,738 and 656,120 is: 1,403,456.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,738 : 656,120 = 656,120 : x
  2. Step 2: Convert to fraction form
    306,738/656,120 = 656,120/x
  3. Step 3: Cross multiply
    306,738x = 656,120 × 656,120
  4. Step 4: Simplify right side
    306,738x = 430,493,454,400
  5. Step 5: Solve for x
    x = 430,493,454,400/306,738
  6. Step 6: Final answer
    x = 1,403,456.55

Related Problems

Find third proportional to 153,369 and 328,060
Half scale
Find third proportional to 613,476 and 1,312,240
Double scale
Find third proportional to 306,740 and 656,124
Similar ratio
Find third proportional to 460,107 and 984,180
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.