Home / 489,868-749,346

Finding the Third Proportional to 489,868 and 749,346

Calculator

Solution

The third proportional to 489,868 and 749,346 is: 1,146,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,868 : 749,346 = 749,346 : x
  2. Step 2: Convert to fraction form
    489,868/749,346 = 749,346/x
  3. Step 3: Cross multiply
    489,868x = 749,346 × 749,346
  4. Step 4: Simplify right side
    489,868x = 561,519,427,716
  5. Step 5: Solve for x
    x = 561,519,427,716/489,868
  6. Step 6: Final answer
    x = 1,146,266.81

Related Problems

Find third proportional to 244,934 and 374,673
Half scale
Find third proportional to 979,736 and 1,498,692
Double scale
Find third proportional to 489,870 and 749,349
Similar ratio
Find third proportional to 734,802 and 1,124,019
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.