Home / 355,572-780,687

Finding the Third Proportional to 355,572 and 780,687

Calculator

Solution

The third proportional to 355,572 and 780,687 is: 1,714,061.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,572 : 780,687 = 780,687 : x
  2. Step 2: Convert to fraction form
    355,572/780,687 = 780,687/x
  3. Step 3: Cross multiply
    355,572x = 780,687 × 780,687
  4. Step 4: Simplify right side
    355,572x = 609,472,191,969
  5. Step 5: Solve for x
    x = 609,472,191,969/355,572
  6. Step 6: Final answer
    x = 1,714,061.26

Related Problems

Find third proportional to 177,786 and 390,343.50
Half scale
Find third proportional to 711,144 and 1,561,374
Double scale
Find third proportional to 355,574 and 780,691
Similar ratio
Find third proportional to 533,358 and 1,171,030.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.