Home / 490,107-749,578

Finding the Third Proportional to 490,107 and 749,578

Calculator

Solution

The third proportional to 490,107 and 749,578 is: 1,146,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,107 : 749,578 = 749,578 : x
  2. Step 2: Convert to fraction form
    490,107/749,578 = 749,578/x
  3. Step 3: Cross multiply
    490,107x = 749,578 × 749,578
  4. Step 4: Simplify right side
    490,107x = 561,867,178,084
  5. Step 5: Solve for x
    x = 561,867,178,084/490,107
  6. Step 6: Final answer
    x = 1,146,417.37

Related Problems

Find third proportional to 245,053.50 and 374,789
Half scale
Find third proportional to 980,214 and 1,499,156
Double scale
Find third proportional to 490,109 and 749,581
Similar ratio
Find third proportional to 735,160.50 and 1,124,367
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.