Home / 315,744-676,320

Finding the Third Proportional to 315,744 and 676,320

Calculator

Solution

The third proportional to 315,744 and 676,320 is: 1,448,669.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,744 : 676,320 = 676,320 : x
  2. Step 2: Convert to fraction form
    315,744/676,320 = 676,320/x
  3. Step 3: Cross multiply
    315,744x = 676,320 × 676,320
  4. Step 4: Simplify right side
    315,744x = 457,408,742,400
  5. Step 5: Solve for x
    x = 457,408,742,400/315,744
  6. Step 6: Final answer
    x = 1,448,669.63

Related Problems

Find third proportional to 157,872 and 338,160
Half scale
Find third proportional to 631,488 and 1,352,640
Double scale
Find third proportional to 315,746 and 676,324
Similar ratio
Find third proportional to 473,616 and 1,014,480
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.