Home / 310,398-474,615

Finding the Third Proportional to 310,398 and 474,615

Calculator

Solution

The third proportional to 310,398 and 474,615 is: 725,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,398 : 474,615 = 474,615 : x
  2. Step 2: Convert to fraction form
    310,398/474,615 = 474,615/x
  3. Step 3: Cross multiply
    310,398x = 474,615 × 474,615
  4. Step 4: Simplify right side
    310,398x = 225,259,398,225
  5. Step 5: Solve for x
    x = 225,259,398,225/310,398
  6. Step 6: Final answer
    x = 725,711.50

Related Problems

Find third proportional to 155,199 and 237,307.50
Half scale
Find third proportional to 620,796 and 949,230
Double scale
Find third proportional to 310,400 and 474,618
Similar ratio
Find third proportional to 465,597 and 711,922.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.