Home / 304,202-678,280

Finding the Third Proportional to 304,202 and 678,280

Calculator

Solution

The third proportional to 304,202 and 678,280 is: 1,512,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,202 : 678,280 = 678,280 : x
  2. Step 2: Convert to fraction form
    304,202/678,280 = 678,280/x
  3. Step 3: Cross multiply
    304,202x = 678,280 × 678,280
  4. Step 4: Simplify right side
    304,202x = 460,063,758,400
  5. Step 5: Solve for x
    x = 460,063,758,400/304,202
  6. Step 6: Final answer
    x = 1,512,362.70

Related Problems

Find third proportional to 152,101 and 339,140
Half scale
Find third proportional to 608,404 and 1,356,560
Double scale
Find third proportional to 304,204 and 678,284
Similar ratio
Find third proportional to 456,303 and 1,017,420
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.