Home / 219,327-478,317

Finding the Third Proportional to 219,327 and 478,317

Calculator

Solution

The third proportional to 219,327 and 478,317 is: 1,043,132.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,327 : 478,317 = 478,317 : x
  2. Step 2: Convert to fraction form
    219,327/478,317 = 478,317/x
  3. Step 3: Cross multiply
    219,327x = 478,317 × 478,317
  4. Step 4: Simplify right side
    219,327x = 228,787,152,489
  5. Step 5: Solve for x
    x = 228,787,152,489/219,327
  6. Step 6: Final answer
    x = 1,043,132.64

Related Problems

Find third proportional to 109,663.50 and 239,158.50
Half scale
Find third proportional to 438,654 and 956,634
Double scale
Find third proportional to 219,329 and 478,321
Similar ratio
Find third proportional to 328,990.50 and 717,475.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.