Home / 301,478-662,140

Finding the Third Proportional to 301,478 and 662,140

Calculator

Solution

The third proportional to 301,478 and 662,140 is: 1,454,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,478 : 662,140 = 662,140 : x
  2. Step 2: Convert to fraction form
    301,478/662,140 = 662,140/x
  3. Step 3: Cross multiply
    301,478x = 662,140 × 662,140
  4. Step 4: Simplify right side
    301,478x = 438,429,379,600
  5. Step 5: Solve for x
    x = 438,429,379,600/301,478
  6. Step 6: Final answer
    x = 1,454,266.58

Related Problems

Find third proportional to 150,739 and 331,070
Half scale
Find third proportional to 602,956 and 1,324,280
Double scale
Find third proportional to 301,480 and 662,144
Similar ratio
Find third proportional to 452,217 and 993,210
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.