Home / 392,428-847,580

Finding the Third Proportional to 392,428 and 847,580

Calculator

Solution

The third proportional to 392,428 and 847,580 is: 1,830,633.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,428 : 847,580 = 847,580 : x
  2. Step 2: Convert to fraction form
    392,428/847,580 = 847,580/x
  3. Step 3: Cross multiply
    392,428x = 847,580 × 847,580
  4. Step 4: Simplify right side
    392,428x = 718,391,856,400
  5. Step 5: Solve for x
    x = 718,391,856,400/392,428
  6. Step 6: Final answer
    x = 1,830,633.53

Related Problems

Find third proportional to 196,214 and 423,790
Half scale
Find third proportional to 784,856 and 1,695,160
Double scale
Find third proportional to 392,430 and 847,584
Similar ratio
Find third proportional to 588,642 and 1,271,370
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.