Home / 315,540-692,280

Finding the Third Proportional to 315,540 and 692,280

Calculator

Solution

The third proportional to 315,540 and 692,280 is: 1,518,829.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,540 : 692,280 = 692,280 : x
  2. Step 2: Convert to fraction form
    315,540/692,280 = 692,280/x
  3. Step 3: Cross multiply
    315,540x = 692,280 × 692,280
  4. Step 4: Simplify right side
    315,540x = 479,251,598,400
  5. Step 5: Solve for x
    x = 479,251,598,400/315,540
  6. Step 6: Final answer
    x = 1,518,829.94

Related Problems

Find third proportional to 157,770 and 346,140
Half scale
Find third proportional to 631,080 and 1,384,560
Double scale
Find third proportional to 315,542 and 692,284
Similar ratio
Find third proportional to 473,310 and 1,038,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.