Home / 303,410-665,139

Finding the Third Proportional to 303,410 and 665,139

Calculator

Solution

The third proportional to 303,410 and 665,139 is: 1,458,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,410 : 665,139 = 665,139 : x
  2. Step 2: Convert to fraction form
    303,410/665,139 = 665,139/x
  3. Step 3: Cross multiply
    303,410x = 665,139 × 665,139
  4. Step 4: Simplify right side
    303,410x = 442,409,889,321
  5. Step 5: Solve for x
    x = 442,409,889,321/303,410
  6. Step 6: Final answer
    x = 1,458,125.60

Related Problems

Find third proportional to 151,705 and 332,569.50
Half scale
Find third proportional to 606,820 and 1,330,278
Double scale
Find third proportional to 303,412 and 665,143
Similar ratio
Find third proportional to 455,115 and 997,708.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.