Home / 518,688-788,692

Finding the Third Proportional to 518,688 and 788,692

Calculator

Solution

The third proportional to 518,688 and 788,692 is: 1,199,247.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,688 : 788,692 = 788,692 : x
  2. Step 2: Convert to fraction form
    518,688/788,692 = 788,692/x
  3. Step 3: Cross multiply
    518,688x = 788,692 × 788,692
  4. Step 4: Simplify right side
    518,688x = 622,035,070,864
  5. Step 5: Solve for x
    x = 622,035,070,864/518,688
  6. Step 6: Final answer
    x = 1,199,247.08

Related Problems

Find third proportional to 259,344 and 394,346
Half scale
Find third proportional to 1,037,376 and 1,577,384
Double scale
Find third proportional to 518,690 and 788,695
Similar ratio
Find third proportional to 778,032 and 1,183,038
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.