Home / 840,640-1,338,277

Finding the Third Proportional to 840,640 and 1,338,277

Calculator

Solution

The third proportional to 840,640 and 1,338,277 is: 2,130,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,640 : 1,338,277 = 1,338,277 : x
  2. Step 2: Convert to fraction form
    840,640/1,338,277 = 1,338,277/x
  3. Step 3: Cross multiply
    840,640x = 1,338,277 × 1,338,277
  4. Step 4: Simplify right side
    840,640x = 1,790,985,328,729
  5. Step 5: Solve for x
    x = 1,790,985,328,729/840,640
  6. Step 6: Final answer
    x = 2,130,502.15

Related Problems

Find third proportional to 420,320 and 669,138.50
Half scale
Find third proportional to 1,681,280 and 2,676,554
Double scale
Find third proportional to 840,642 and 1,338,280
Similar ratio
Find third proportional to 1,260,960 and 2,007,415.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.