Home / 218,644-477,787

Finding the Third Proportional to 218,644 and 477,787

Calculator

Solution

The third proportional to 218,644 and 477,787 is: 1,044,073.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,644 : 477,787 = 477,787 : x
  2. Step 2: Convert to fraction form
    218,644/477,787 = 477,787/x
  3. Step 3: Cross multiply
    218,644x = 477,787 × 477,787
  4. Step 4: Simplify right side
    218,644x = 228,280,417,369
  5. Step 5: Solve for x
    x = 228,280,417,369/218,644
  6. Step 6: Final answer
    x = 1,044,073.55

Related Problems

Find third proportional to 109,322 and 238,893.50
Half scale
Find third proportional to 437,288 and 955,574
Double scale
Find third proportional to 218,646 and 477,791
Similar ratio
Find third proportional to 327,966 and 716,680.50
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.