Home / 378,330-578,578

Finding the Third Proportional to 378,330 and 578,578

Calculator

Solution

The third proportional to 378,330 and 578,578 is: 884,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,330 : 578,578 = 578,578 : x
  2. Step 2: Convert to fraction form
    378,330/578,578 = 578,578/x
  3. Step 3: Cross multiply
    378,330x = 578,578 × 578,578
  4. Step 4: Simplify right side
    378,330x = 334,752,502,084
  5. Step 5: Solve for x
    x = 334,752,502,084/378,330
  6. Step 6: Final answer
    x = 884,816.17

Related Problems

Find third proportional to 189,165 and 289,289
Half scale
Find third proportional to 756,660 and 1,157,156
Double scale
Find third proportional to 378,332 and 578,581
Similar ratio
Find third proportional to 567,495 and 867,867
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.