Home / 437.06-642.94

Finding the Third Proportional to 437.06 and 642.94

Calculator

Solution

The third proportional to 437.06 and 642.94 is: 945.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.06 : 642.94 = 642.94 : x
  2. Step 2: Convert to fraction form
    437.06/642.94 = 642.94/x
  3. Step 3: Cross multiply
    437.06x = 642.94 × 642.94
  4. Step 4: Simplify right side
    437.06x = 413,368.63
  5. Step 5: Solve for x
    x = 413,368.63/437.06
  6. Step 6: Final answer
    x = 945.79

Related Problems

Find third proportional to 218.53 and 321.47
Half scale
Find third proportional to 874.13 and 1,285.88
Double scale
Find third proportional to 439 and 646
Similar ratio
Find third proportional to 655.59 and 964.41
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.