Home / 287,052-427,296

Finding the Third Proportional to 287,052 and 427,296

Calculator

Solution

The third proportional to 287,052 and 427,296 is: 636,058.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,052 : 427,296 = 427,296 : x
  2. Step 2: Convert to fraction form
    287,052/427,296 = 427,296/x
  3. Step 3: Cross multiply
    287,052x = 427,296 × 427,296
  4. Step 4: Simplify right side
    287,052x = 182,581,871,616
  5. Step 5: Solve for x
    x = 182,581,871,616/287,052
  6. Step 6: Final answer
    x = 636,058.52

Related Problems

Find third proportional to 143,526 and 213,648
Half scale
Find third proportional to 574,104 and 854,592
Double scale
Find third proportional to 287,054 and 427,299
Similar ratio
Find third proportional to 430,578 and 640,944
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.