Home / 305,394-456,687

Finding the Third Proportional to 305,394 and 456,687

Calculator

Solution

The third proportional to 305,394 and 456,687 is: 682,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,394 : 456,687 = 456,687 : x
  2. Step 2: Convert to fraction form
    305,394/456,687 = 456,687/x
  3. Step 3: Cross multiply
    305,394x = 456,687 × 456,687
  4. Step 4: Simplify right side
    305,394x = 208,563,015,969
  5. Step 5: Solve for x
    x = 208,563,015,969/305,394
  6. Step 6: Final answer
    x = 682,930.95

Related Problems

Find third proportional to 152,697 and 228,343.50
Half scale
Find third proportional to 610,788 and 913,374
Double scale
Find third proportional to 305,396 and 456,690
Similar ratio
Find third proportional to 458,091 and 685,030.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.