Home / 258,712-386,472

Finding the Third Proportional to 258,712 and 386,472

Calculator

Solution

The third proportional to 258,712 and 386,472 is: 577,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,712 : 386,472 = 386,472 : x
  2. Step 2: Convert to fraction form
    258,712/386,472 = 386,472/x
  3. Step 3: Cross multiply
    258,712x = 386,472 × 386,472
  4. Step 4: Simplify right side
    258,712x = 149,360,606,784
  5. Step 5: Solve for x
    x = 149,360,606,784/258,712
  6. Step 6: Final answer
    x = 577,323.85

Related Problems

Find third proportional to 129,356 and 193,236
Half scale
Find third proportional to 517,424 and 772,944
Double scale
Find third proportional to 258,714 and 386,475
Similar ratio
Find third proportional to 388,068 and 579,708
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.