Home / 310,888-666,000

Finding the Third Proportional to 310,888 and 666,000

Calculator

Solution

The third proportional to 310,888 and 666,000 is: 1,426,738.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,888 : 666,000 = 666,000 : x
  2. Step 2: Convert to fraction form
    310,888/666,000 = 666,000/x
  3. Step 3: Cross multiply
    310,888x = 666,000 × 666,000
  4. Step 4: Simplify right side
    310,888x = 443,556,000,000
  5. Step 5: Solve for x
    x = 443,556,000,000/310,888
  6. Step 6: Final answer
    x = 1,426,738.89

Related Problems

Find third proportional to 155,444 and 333,000
Half scale
Find third proportional to 621,776 and 1,332,000
Double scale
Find third proportional to 310,890 and 666,004
Similar ratio
Find third proportional to 466,332 and 999,000
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.