Home / 315,970-513,342

Finding the Third Proportional to 315,970 and 513,342

Calculator

Solution

The third proportional to 315,970 and 513,342 is: 834,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,970 : 513,342 = 513,342 : x
  2. Step 2: Convert to fraction form
    315,970/513,342 = 513,342/x
  3. Step 3: Cross multiply
    315,970x = 513,342 × 513,342
  4. Step 4: Simplify right side
    315,970x = 263,520,008,964
  5. Step 5: Solve for x
    x = 263,520,008,964/315,970
  6. Step 6: Final answer
    x = 834,003.26

Related Problems

Find third proportional to 157,985 and 256,671
Half scale
Find third proportional to 631,940 and 1,026,684
Double scale
Find third proportional to 315,972 and 513,345
Similar ratio
Find third proportional to 473,955 and 770,013
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.