Home / 293,140-642,392

Finding the Third Proportional to 293,140 and 642,392

Calculator

Solution

The third proportional to 293,140 and 642,392 is: 1,407,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,140 : 642,392 = 642,392 : x
  2. Step 2: Convert to fraction form
    293,140/642,392 = 642,392/x
  3. Step 3: Cross multiply
    293,140x = 642,392 × 642,392
  4. Step 4: Simplify right side
    293,140x = 412,667,481,664
  5. Step 5: Solve for x
    x = 412,667,481,664/293,140
  6. Step 6: Final answer
    x = 1,407,748.79

Related Problems

Find third proportional to 146,570 and 321,196
Half scale
Find third proportional to 586,280 and 1,284,784
Double scale
Find third proportional to 293,142 and 642,396
Similar ratio
Find third proportional to 439,710 and 963,588
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.