Home / 423,045-647,964

Finding the Third Proportional to 423,045 and 647,964

Calculator

Solution

The third proportional to 423,045 and 647,964 is: 992,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,045 : 647,964 = 647,964 : x
  2. Step 2: Convert to fraction form
    423,045/647,964 = 647,964/x
  3. Step 3: Cross multiply
    423,045x = 647,964 × 647,964
  4. Step 4: Simplify right side
    423,045x = 419,857,345,296
  5. Step 5: Solve for x
    x = 419,857,345,296/423,045
  6. Step 6: Final answer
    x = 992,464.97

Related Problems

Find third proportional to 211,522.50 and 323,982
Half scale
Find third proportional to 846,090 and 1,295,928
Double scale
Find third proportional to 423,047 and 647,967
Similar ratio
Find third proportional to 634,567.50 and 971,946
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.