Home / 390,624-836,544

Finding the Third Proportional to 390,624 and 836,544

Calculator

Solution

The third proportional to 390,624 and 836,544 is: 1,791,507.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,624 : 836,544 = 836,544 : x
  2. Step 2: Convert to fraction form
    390,624/836,544 = 836,544/x
  3. Step 3: Cross multiply
    390,624x = 836,544 × 836,544
  4. Step 4: Simplify right side
    390,624x = 699,805,863,936
  5. Step 5: Solve for x
    x = 699,805,863,936/390,624
  6. Step 6: Final answer
    x = 1,791,507.60

Related Problems

Find third proportional to 195,312 and 418,272
Half scale
Find third proportional to 781,248 and 1,673,088
Double scale
Find third proportional to 390,626 and 836,548
Similar ratio
Find third proportional to 585,936 and 1,254,816
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.