Home / 418,656-872,736

Finding the Third Proportional to 418,656 and 872,736

Calculator

Solution

The third proportional to 418,656 and 872,736 is: 1,819,317.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,656 : 872,736 = 872,736 : x
  2. Step 2: Convert to fraction form
    418,656/872,736 = 872,736/x
  3. Step 3: Cross multiply
    418,656x = 872,736 × 872,736
  4. Step 4: Simplify right side
    418,656x = 761,668,125,696
  5. Step 5: Solve for x
    x = 761,668,125,696/418,656
  6. Step 6: Final answer
    x = 1,819,317.35

Related Problems

Find third proportional to 209,328 and 436,368
Half scale
Find third proportional to 837,312 and 1,745,472
Double scale
Find third proportional to 418,658 and 872,740
Similar ratio
Find third proportional to 627,984 and 1,309,104
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.