Home / 831,276-1,289,682

Finding the Third Proportional to 831,276 and 1,289,682

Calculator

Solution

The third proportional to 831,276 and 1,289,682 is: 2,000,875.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,276 : 1,289,682 = 1,289,682 : x
  2. Step 2: Convert to fraction form
    831,276/1,289,682 = 1,289,682/x
  3. Step 3: Cross multiply
    831,276x = 1,289,682 × 1,289,682
  4. Step 4: Simplify right side
    831,276x = 1,663,279,661,124
  5. Step 5: Solve for x
    x = 1,663,279,661,124/831,276
  6. Step 6: Final answer
    x = 2,000,875.35

Related Problems

Find third proportional to 415,638 and 644,841
Half scale
Find third proportional to 1,662,552 and 2,579,364
Double scale
Find third proportional to 831,278 and 1,289,685
Similar ratio
Find third proportional to 1,246,914 and 1,934,523
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.