Home / 480,150-686,178

Finding the Third Proportional to 480,150 and 686,178

Calculator

Solution

The third proportional to 480,150 and 686,178 is: 980,610.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,150 : 686,178 = 686,178 : x
  2. Step 2: Convert to fraction form
    480,150/686,178 = 686,178/x
  3. Step 3: Cross multiply
    480,150x = 686,178 × 686,178
  4. Step 4: Simplify right side
    480,150x = 470,840,247,684
  5. Step 5: Solve for x
    x = 470,840,247,684/480,150
  6. Step 6: Final answer
    x = 980,610.74

Related Problems

Find third proportional to 240,075 and 343,089
Half scale
Find third proportional to 960,300 and 1,372,356
Double scale
Find third proportional to 480,152 and 686,181
Similar ratio
Find third proportional to 720,225 and 1,029,267
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.