Home / 310,492-679,100

Finding the Third Proportional to 310,492 and 679,100

Calculator

Solution

The third proportional to 310,492 and 679,100 is: 1,485,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,492 : 679,100 = 679,100 : x
  2. Step 2: Convert to fraction form
    310,492/679,100 = 679,100/x
  3. Step 3: Cross multiply
    310,492x = 679,100 × 679,100
  4. Step 4: Simplify right side
    310,492x = 461,176,810,000
  5. Step 5: Solve for x
    x = 461,176,810,000/310,492
  6. Step 6: Final answer
    x = 1,485,309.80

Related Problems

Find third proportional to 155,246 and 339,550
Half scale
Find third proportional to 620,984 and 1,358,200
Double scale
Find third proportional to 310,494 and 679,104
Similar ratio
Find third proportional to 465,738 and 1,018,650
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.