Home / 486,291-781,332

Finding the Third Proportional to 486,291 and 781,332

Calculator

Solution

The third proportional to 486,291 and 781,332 is: 1,255,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,291 : 781,332 = 781,332 : x
  2. Step 2: Convert to fraction form
    486,291/781,332 = 781,332/x
  3. Step 3: Cross multiply
    486,291x = 781,332 × 781,332
  4. Step 4: Simplify right side
    486,291x = 610,479,694,224
  5. Step 5: Solve for x
    x = 610,479,694,224/486,291
  6. Step 6: Final answer
    x = 1,255,379.38

Related Problems

Find third proportional to 243,145.50 and 390,666
Half scale
Find third proportional to 972,582 and 1,562,664
Double scale
Find third proportional to 486,293 and 781,335
Similar ratio
Find third proportional to 729,436.50 and 1,171,998
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.