Home / 292,422-637,728

Finding the Third Proportional to 292,422 and 637,728

Calculator

Solution

The third proportional to 292,422 and 637,728 is: 1,390,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,422 : 637,728 = 637,728 : x
  2. Step 2: Convert to fraction form
    292,422/637,728 = 637,728/x
  3. Step 3: Cross multiply
    292,422x = 637,728 × 637,728
  4. Step 4: Simplify right side
    292,422x = 406,697,001,984
  5. Step 5: Solve for x
    x = 406,697,001,984/292,422
  6. Step 6: Final answer
    x = 1,390,787.98

Related Problems

Find third proportional to 146,211 and 318,864
Half scale
Find third proportional to 584,844 and 1,275,456
Double scale
Find third proportional to 292,424 and 637,732
Similar ratio
Find third proportional to 438,633 and 956,592
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.