Home / 306,442-459,999

Finding the Third Proportional to 306,442 and 459,999

Calculator

Solution

The third proportional to 306,442 and 459,999 is: 690,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,442 : 459,999 = 459,999 : x
  2. Step 2: Convert to fraction form
    306,442/459,999 = 459,999/x
  3. Step 3: Cross multiply
    306,442x = 459,999 × 459,999
  4. Step 4: Simplify right side
    306,442x = 211,599,080,001
  5. Step 5: Solve for x
    x = 211,599,080,001/306,442
  6. Step 6: Final answer
    x = 690,502.87

Related Problems

Find third proportional to 153,221 and 229,999.50
Half scale
Find third proportional to 612,884 and 919,998
Double scale
Find third proportional to 306,444 and 460,002
Similar ratio
Find third proportional to 459,663 and 689,998.50
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.