Home / 386,998-910,618

Finding the Third Proportional to 386,998 and 910,618

Calculator

Solution

The third proportional to 386,998 and 910,618 is: 2,142,711.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,998 : 910,618 = 910,618 : x
  2. Step 2: Convert to fraction form
    386,998/910,618 = 910,618/x
  3. Step 3: Cross multiply
    386,998x = 910,618 × 910,618
  4. Step 4: Simplify right side
    386,998x = 829,225,141,924
  5. Step 5: Solve for x
    x = 829,225,141,924/386,998
  6. Step 6: Final answer
    x = 2,142,711.70

Related Problems

Find third proportional to 193,499 and 455,309
Half scale
Find third proportional to 773,996 and 1,821,236
Double scale
Find third proportional to 387,000 and 910,623
Similar ratio
Find third proportional to 580,497 and 1,365,927
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.