Home / 280,074-430,494

Finding the Third Proportional to 280,074 and 430,494

Calculator

Solution

The third proportional to 280,074 and 430,494 is: 661,700.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,074 : 430,494 = 430,494 : x
  2. Step 2: Convert to fraction form
    280,074/430,494 = 430,494/x
  3. Step 3: Cross multiply
    280,074x = 430,494 × 430,494
  4. Step 4: Simplify right side
    280,074x = 185,325,084,036
  5. Step 5: Solve for x
    x = 185,325,084,036/280,074
  6. Step 6: Final answer
    x = 661,700.42

Related Problems

Find third proportional to 140,037 and 215,247
Half scale
Find third proportional to 560,148 and 860,988
Double scale
Find third proportional to 280,076 and 430,497
Similar ratio
Find third proportional to 420,111 and 645,741
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.