Home / 320,472-498,240

Finding the Third Proportional to 320,472 and 498,240

Calculator

Solution

The third proportional to 320,472 and 498,240 is: 774,617.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,472 : 498,240 = 498,240 : x
  2. Step 2: Convert to fraction form
    320,472/498,240 = 498,240/x
  3. Step 3: Cross multiply
    320,472x = 498,240 × 498,240
  4. Step 4: Simplify right side
    320,472x = 248,243,097,600
  5. Step 5: Solve for x
    x = 248,243,097,600/320,472
  6. Step 6: Final answer
    x = 774,617.12

Related Problems

Find third proportional to 160,236 and 249,120
Half scale
Find third proportional to 640,944 and 996,480
Double scale
Find third proportional to 320,474 and 498,243
Similar ratio
Find third proportional to 480,708 and 747,360
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.