Home / 372,112-815,148

Finding the Third Proportional to 372,112 and 815,148

Calculator

Solution

The third proportional to 372,112 and 815,148 is: 1,785,662.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,112 : 815,148 = 815,148 : x
  2. Step 2: Convert to fraction form
    372,112/815,148 = 815,148/x
  3. Step 3: Cross multiply
    372,112x = 815,148 × 815,148
  4. Step 4: Simplify right side
    372,112x = 664,466,261,904
  5. Step 5: Solve for x
    x = 664,466,261,904/372,112
  6. Step 6: Final answer
    x = 1,785,662.01

Related Problems

Find third proportional to 186,056 and 407,574
Half scale
Find third proportional to 744,224 and 1,630,296
Double scale
Find third proportional to 372,114 and 815,152
Similar ratio
Find third proportional to 558,168 and 1,222,722
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.