Home / 438,730-663,495

Finding the Third Proportional to 438,730 and 663,495

Calculator

Solution

The third proportional to 438,730 and 663,495 is: 1,003,408.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,730 : 663,495 = 663,495 : x
  2. Step 2: Convert to fraction form
    438,730/663,495 = 663,495/x
  3. Step 3: Cross multiply
    438,730x = 663,495 × 663,495
  4. Step 4: Simplify right side
    438,730x = 440,225,615,025
  5. Step 5: Solve for x
    x = 440,225,615,025/438,730
  6. Step 6: Final answer
    x = 1,003,408.96

Related Problems

Find third proportional to 219,365 and 331,747.50
Half scale
Find third proportional to 877,460 and 1,326,990
Double scale
Find third proportional to 438,732 and 663,498
Similar ratio
Find third proportional to 658,095 and 995,242.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.