Home / 390,634-836,564

Finding the Third Proportional to 390,634 and 836,564

Calculator

Solution

The third proportional to 390,634 and 836,564 is: 1,791,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,634 : 836,564 = 836,564 : x
  2. Step 2: Convert to fraction form
    390,634/836,564 = 836,564/x
  3. Step 3: Cross multiply
    390,634x = 836,564 × 836,564
  4. Step 4: Simplify right side
    390,634x = 699,839,326,096
  5. Step 5: Solve for x
    x = 699,839,326,096/390,634
  6. Step 6: Final answer
    x = 1,791,547.40

Related Problems

Find third proportional to 195,317 and 418,282
Half scale
Find third proportional to 781,268 and 1,673,128
Double scale
Find third proportional to 390,636 and 836,568
Similar ratio
Find third proportional to 585,951 and 1,254,846
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.