Home / 302,288-659,840

Finding the Third Proportional to 302,288 and 659,840

Calculator

Solution

The third proportional to 302,288 and 659,840 is: 1,440,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,288 : 659,840 = 659,840 : x
  2. Step 2: Convert to fraction form
    302,288/659,840 = 659,840/x
  3. Step 3: Cross multiply
    302,288x = 659,840 × 659,840
  4. Step 4: Simplify right side
    302,288x = 435,388,825,600
  5. Step 5: Solve for x
    x = 435,388,825,600/302,288
  6. Step 6: Final answer
    x = 1,440,311.31

Related Problems

Find third proportional to 151,144 and 329,920
Half scale
Find third proportional to 604,576 and 1,319,680
Double scale
Find third proportional to 302,290 and 659,844
Similar ratio
Find third proportional to 453,432 and 989,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.