Home / 315,067-478,426

Finding the Third Proportional to 315,067 and 478,426

Calculator

Solution

The third proportional to 315,067 and 478,426 is: 726,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,067 : 478,426 = 478,426 : x
  2. Step 2: Convert to fraction form
    315,067/478,426 = 478,426/x
  3. Step 3: Cross multiply
    315,067x = 478,426 × 478,426
  4. Step 4: Simplify right side
    315,067x = 228,891,437,476
  5. Step 5: Solve for x
    x = 228,891,437,476/315,067
  6. Step 6: Final answer
    x = 726,484.96

Related Problems

Find third proportional to 157,533.50 and 239,213
Half scale
Find third proportional to 630,134 and 956,852
Double scale
Find third proportional to 315,069 and 478,429
Similar ratio
Find third proportional to 472,600.50 and 717,639
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.