Home / 298,653-644,814

Finding the Third Proportional to 298,653 and 644,814

Calculator

Solution

The third proportional to 298,653 and 644,814 is: 1,392,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,653 : 644,814 = 644,814 : x
  2. Step 2: Convert to fraction form
    298,653/644,814 = 644,814/x
  3. Step 3: Cross multiply
    298,653x = 644,814 × 644,814
  4. Step 4: Simplify right side
    298,653x = 415,785,094,596
  5. Step 5: Solve for x
    x = 415,785,094,596/298,653
  6. Step 6: Final answer
    x = 1,392,201.30

Related Problems

Find third proportional to 149,326.50 and 322,407
Half scale
Find third proportional to 597,306 and 1,289,628
Double scale
Find third proportional to 298,655 and 644,818
Similar ratio
Find third proportional to 447,979.50 and 967,221
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.