Home / 307,605-658,949

Finding the Third Proportional to 307,605 and 658,949

Calculator

Solution

The third proportional to 307,605 and 658,949 is: 1,411,595.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,605 : 658,949 = 658,949 : x
  2. Step 2: Convert to fraction form
    307,605/658,949 = 658,949/x
  3. Step 3: Cross multiply
    307,605x = 658,949 × 658,949
  4. Step 4: Simplify right side
    307,605x = 434,213,784,601
  5. Step 5: Solve for x
    x = 434,213,784,601/307,605
  6. Step 6: Final answer
    x = 1,411,595.34

Related Problems

Find third proportional to 153,802.50 and 329,474.50
Half scale
Find third proportional to 615,210 and 1,317,898
Double scale
Find third proportional to 307,607 and 658,953
Similar ratio
Find third proportional to 461,407.50 and 988,423.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.