Home / 428,982-847,188

Finding the Third Proportional to 428,982 and 847,188

Calculator

Solution

The third proportional to 428,982 and 847,188 is: 1,673,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,982 : 847,188 = 847,188 : x
  2. Step 2: Convert to fraction form
    428,982/847,188 = 847,188/x
  3. Step 3: Cross multiply
    428,982x = 847,188 × 847,188
  4. Step 4: Simplify right side
    428,982x = 717,727,507,344
  5. Step 5: Solve for x
    x = 717,727,507,344/428,982
  6. Step 6: Final answer
    x = 1,673,094.69

Related Problems

Find third proportional to 214,491 and 423,594
Half scale
Find third proportional to 857,964 and 1,694,376
Double scale
Find third proportional to 428,984 and 847,192
Similar ratio
Find third proportional to 643,473 and 1,270,782
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.