Home / 405,383-608,282

Finding the Third Proportional to 405,383 and 608,282

Calculator

Solution

The third proportional to 405,383 and 608,282 is: 912,734.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,383 : 608,282 = 608,282 : x
  2. Step 2: Convert to fraction form
    405,383/608,282 = 608,282/x
  3. Step 3: Cross multiply
    405,383x = 608,282 × 608,282
  4. Step 4: Simplify right side
    405,383x = 370,006,991,524
  5. Step 5: Solve for x
    x = 370,006,991,524/405,383
  6. Step 6: Final answer
    x = 912,734.36

Related Problems

Find third proportional to 202,691.50 and 304,141
Half scale
Find third proportional to 810,766 and 1,216,564
Double scale
Find third proportional to 405,385 and 608,285
Similar ratio
Find third proportional to 608,074.50 and 912,423
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.