Home / 417,856-636,576

Finding the Third Proportional to 417,856 and 636,576

Calculator

Solution

The third proportional to 417,856 and 636,576 is: 969,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,856 : 636,576 = 636,576 : x
  2. Step 2: Convert to fraction form
    417,856/636,576 = 636,576/x
  3. Step 3: Cross multiply
    417,856x = 636,576 × 636,576
  4. Step 4: Simplify right side
    417,856x = 405,229,003,776
  5. Step 5: Solve for x
    x = 405,229,003,776/417,856
  6. Step 6: Final answer
    x = 969,781.46

Related Problems

Find third proportional to 208,928 and 318,288
Half scale
Find third proportional to 835,712 and 1,273,152
Double scale
Find third proportional to 417,858 and 636,579
Similar ratio
Find third proportional to 626,784 and 954,864
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.