Home / 428,692.50-630,645.75

Finding the Third Proportional to 428,692.50 and 630,645.75

Calculator

Solution

The third proportional to 428,692.50 and 630,645.75 is: 927,737.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,692.50 : 630,645.75 = 630,645.75 : x
  2. Step 2: Convert to fraction form
    428,692.50/630,645.75 = 630,645.75/x
  3. Step 3: Cross multiply
    428,692.50x = 630,645.75 × 630,645.75
  4. Step 4: Simplify right side
    428,692.50x = 397,714,061,993.06
  5. Step 5: Solve for x
    x = 397,714,061,993.06/428,692.50
  6. Step 6: Final answer
    x = 927,737.39

Related Problems

Find third proportional to 214,346.25 and 315,322.88
Half scale
Find third proportional to 857,385 and 1,261,291.50
Double scale
Find third proportional to 428,695 and 630,649
Similar ratio
Find third proportional to 643,038.75 and 945,968.63
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.