Home / 340,447-477,130

Finding the Third Proportional to 340,447 and 477,130

Calculator

Solution

The third proportional to 340,447 and 477,130 is: 668,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,447 : 477,130 = 477,130 : x
  2. Step 2: Convert to fraction form
    340,447/477,130 = 477,130/x
  3. Step 3: Cross multiply
    340,447x = 477,130 × 477,130
  4. Step 4: Simplify right side
    340,447x = 227,653,036,900
  5. Step 5: Solve for x
    x = 227,653,036,900/340,447
  6. Step 6: Final answer
    x = 668,688.63

Related Problems

Find third proportional to 170,223.50 and 238,565
Half scale
Find third proportional to 680,894 and 954,260
Double scale
Find third proportional to 340,449 and 477,133
Similar ratio
Find third proportional to 510,670.50 and 715,695
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.