Home / 405,756-875,664

Finding the Third Proportional to 405,756 and 875,664

Calculator

Solution

The third proportional to 405,756 and 875,664 is: 1,889,774.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,756 : 875,664 = 875,664 : x
  2. Step 2: Convert to fraction form
    405,756/875,664 = 875,664/x
  3. Step 3: Cross multiply
    405,756x = 875,664 × 875,664
  4. Step 4: Simplify right side
    405,756x = 766,787,440,896
  5. Step 5: Solve for x
    x = 766,787,440,896/405,756
  6. Step 6: Final answer
    x = 1,889,774.74

Related Problems

Find third proportional to 202,878 and 437,832
Half scale
Find third proportional to 811,512 and 1,751,328
Double scale
Find third proportional to 405,758 and 875,668
Similar ratio
Find third proportional to 608,634 and 1,313,496
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.