Home / 316,625-646,169

Finding the Third Proportional to 316,625 and 646,169

Calculator

Solution

The third proportional to 316,625 and 646,169 is: 1,318,703.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,625 : 646,169 = 646,169 : x
  2. Step 2: Convert to fraction form
    316,625/646,169 = 646,169/x
  3. Step 3: Cross multiply
    316,625x = 646,169 × 646,169
  4. Step 4: Simplify right side
    316,625x = 417,534,376,561
  5. Step 5: Solve for x
    x = 417,534,376,561/316,625
  6. Step 6: Final answer
    x = 1,318,703.12

Related Problems

Find third proportional to 158,312.50 and 323,084.50
Half scale
Find third proportional to 633,250 and 1,292,338
Double scale
Find third proportional to 316,627 and 646,173
Similar ratio
Find third proportional to 474,937.50 and 969,253.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.