Home / 387,085-616,340

Finding the Third Proportional to 387,085 and 616,340

Calculator

Solution

The third proportional to 387,085 and 616,340 is: 981,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,085 : 616,340 = 616,340 : x
  2. Step 2: Convert to fraction form
    387,085/616,340 = 616,340/x
  3. Step 3: Cross multiply
    387,085x = 616,340 × 616,340
  4. Step 4: Simplify right side
    387,085x = 379,874,995,600
  5. Step 5: Solve for x
    x = 379,874,995,600/387,085
  6. Step 6: Final answer
    x = 981,373.59

Related Problems

Find third proportional to 193,542.50 and 308,170
Half scale
Find third proportional to 774,170 and 1,232,680
Double scale
Find third proportional to 387,087 and 616,343
Similar ratio
Find third proportional to 580,627.50 and 924,510
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.