Home / 687,368-1,509,223

Finding the Third Proportional to 687,368 and 1,509,223

Calculator

Solution

The third proportional to 687,368 and 1,509,223 is: 3,313,733.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,368 : 1,509,223 = 1,509,223 : x
  2. Step 2: Convert to fraction form
    687,368/1,509,223 = 1,509,223/x
  3. Step 3: Cross multiply
    687,368x = 1,509,223 × 1,509,223
  4. Step 4: Simplify right side
    687,368x = 2,277,754,063,729
  5. Step 5: Solve for x
    x = 2,277,754,063,729/687,368
  6. Step 6: Final answer
    x = 3,313,733.06

Related Problems

Find third proportional to 343,684 and 754,611.50
Half scale
Find third proportional to 1,374,736 and 3,018,446
Double scale
Find third proportional to 687,370 and 1,509,227
Similar ratio
Find third proportional to 1,031,052 and 2,263,834.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.