Home / 310,400-670,304

Finding the Third Proportional to 310,400 and 670,304

Calculator

Solution

The third proportional to 310,400 and 670,304 is: 1,447,511.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,400 : 670,304 = 670,304 : x
  2. Step 2: Convert to fraction form
    310,400/670,304 = 670,304/x
  3. Step 3: Cross multiply
    310,400x = 670,304 × 670,304
  4. Step 4: Simplify right side
    310,400x = 449,307,452,416
  5. Step 5: Solve for x
    x = 449,307,452,416/310,400
  6. Step 6: Final answer
    x = 1,447,511.12

Related Problems

Find third proportional to 155,200 and 335,152
Half scale
Find third proportional to 620,800 and 1,340,608
Double scale
Find third proportional to 310,402 and 670,308
Similar ratio
Find third proportional to 465,600 and 1,005,456
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.