Home / 290,628-453,159

Finding the Third Proportional to 290,628 and 453,159

Calculator

Solution

The third proportional to 290,628 and 453,159 is: 706,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,628 : 453,159 = 453,159 : x
  2. Step 2: Convert to fraction form
    290,628/453,159 = 453,159/x
  3. Step 3: Cross multiply
    290,628x = 453,159 × 453,159
  4. Step 4: Simplify right side
    290,628x = 205,353,079,281
  5. Step 5: Solve for x
    x = 205,353,079,281/290,628
  6. Step 6: Final answer
    x = 706,583.95

Related Problems

Find third proportional to 145,314 and 226,579.50
Half scale
Find third proportional to 581,256 and 906,318
Double scale
Find third proportional to 290,630 and 453,162
Similar ratio
Find third proportional to 435,942 and 679,738.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.