Home / 306,970-664,382

Finding the Third Proportional to 306,970 and 664,382

Calculator

Solution

The third proportional to 306,970 and 664,382 is: 1,437,936.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,970 : 664,382 = 664,382 : x
  2. Step 2: Convert to fraction form
    306,970/664,382 = 664,382/x
  3. Step 3: Cross multiply
    306,970x = 664,382 × 664,382
  4. Step 4: Simplify right side
    306,970x = 441,403,441,924
  5. Step 5: Solve for x
    x = 441,403,441,924/306,970
  6. Step 6: Final answer
    x = 1,437,936.74

Related Problems

Find third proportional to 153,485 and 332,191
Half scale
Find third proportional to 613,940 and 1,328,764
Double scale
Find third proportional to 306,972 and 664,386
Similar ratio
Find third proportional to 460,455 and 996,573
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.