Home / 386,499-830,136

Finding the Third Proportional to 386,499 and 830,136

Calculator

Solution

The third proportional to 386,499 and 830,136 is: 1,782,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,499 : 830,136 = 830,136 : x
  2. Step 2: Convert to fraction form
    386,499/830,136 = 830,136/x
  3. Step 3: Cross multiply
    386,499x = 830,136 × 830,136
  4. Step 4: Simplify right side
    386,499x = 689,125,778,496
  5. Step 5: Solve for x
    x = 689,125,778,496/386,499
  6. Step 6: Final answer
    x = 1,782,994.98

Related Problems

Find third proportional to 193,249.50 and 415,068
Half scale
Find third proportional to 772,998 and 1,660,272
Double scale
Find third proportional to 386,501 and 830,140
Similar ratio
Find third proportional to 579,748.50 and 1,245,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.