Home / 305,580-672,078

Finding the Third Proportional to 305,580 and 672,078

Calculator

Solution

The third proportional to 305,580 and 672,078 is: 1,478,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,580 : 672,078 = 672,078 : x
  2. Step 2: Convert to fraction form
    305,580/672,078 = 672,078/x
  3. Step 3: Cross multiply
    305,580x = 672,078 × 672,078
  4. Step 4: Simplify right side
    305,580x = 451,688,838,084
  5. Step 5: Solve for x
    x = 451,688,838,084/305,580
  6. Step 6: Final answer
    x = 1,478,136.13

Related Problems

Find third proportional to 152,790 and 336,039
Half scale
Find third proportional to 611,160 and 1,344,156
Double scale
Find third proportional to 305,582 and 672,082
Similar ratio
Find third proportional to 458,370 and 1,008,117
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.