Home / 489,864-749,340

Finding the Third Proportional to 489,864 and 749,340

Calculator

Solution

The third proportional to 489,864 and 749,340 is: 1,146,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,864 : 749,340 = 749,340 : x
  2. Step 2: Convert to fraction form
    489,864/749,340 = 749,340/x
  3. Step 3: Cross multiply
    489,864x = 749,340 × 749,340
  4. Step 4: Simplify right side
    489,864x = 561,510,435,600
  5. Step 5: Solve for x
    x = 561,510,435,600/489,864
  6. Step 6: Final answer
    x = 1,146,257.81

Related Problems

Find third proportional to 244,932 and 374,670
Half scale
Find third proportional to 979,728 and 1,498,680
Double scale
Find third proportional to 489,866 and 749,343
Similar ratio
Find third proportional to 734,796 and 1,124,010
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.