Home / 556.50-630

Finding the Third Proportional to 556.50 and 630

Calculator

Solution

The third proportional to 556.50 and 630 is: 713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.50 : 630 = 630 : x
  2. Step 2: Convert to fraction form
    556.50/630 = 630/x
  3. Step 3: Cross multiply
    556.50x = 630 × 630
  4. Step 4: Simplify right side
    556.50x = 396,900
  5. Step 5: Solve for x
    x = 396,900/556.50
  6. Step 6: Final answer
    x = 713.21

Related Problems

Find third proportional to 278.25 and 315
Half scale
Find third proportional to 1,113 and 1,260
Double scale
Find third proportional to 559 and 632
Similar ratio
Find third proportional to 834.75 and 945
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.