Home / 286,638-607,424

Finding the Third Proportional to 286,638 and 607,424

Calculator

Solution

The third proportional to 286,638 and 607,424 is: 1,287,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,638 : 607,424 = 607,424 : x
  2. Step 2: Convert to fraction form
    286,638/607,424 = 607,424/x
  3. Step 3: Cross multiply
    286,638x = 607,424 × 607,424
  4. Step 4: Simplify right side
    286,638x = 368,963,915,776
  5. Step 5: Solve for x
    x = 368,963,915,776/286,638
  6. Step 6: Final answer
    x = 1,287,212.15

Related Problems

Find third proportional to 143,319 and 303,712
Half scale
Find third proportional to 573,276 and 1,214,848
Double scale
Find third proportional to 286,640 and 607,428
Similar ratio
Find third proportional to 429,957 and 911,136
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.