Home / 637.88-988.88

Finding the Third Proportional to 637.88 and 988.88

Calculator

Solution

The third proportional to 637.88 and 988.88 is: 1,533.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.88 : 988.88 = 988.88 : x
  2. Step 2: Convert to fraction form
    637.88/988.88 = 988.88/x
  3. Step 3: Cross multiply
    637.88x = 988.88 × 988.88
  4. Step 4: Simplify right side
    637.88x = 977,873.77
  5. Step 5: Solve for x
    x = 977,873.77/637.88
  6. Step 6: Final answer
    x = 1,533.02

Related Problems

Find third proportional to 318.94 and 494.44
Half scale
Find third proportional to 1,275.75 and 1,977.75
Double scale
Find third proportional to 640 and 992
Similar ratio
Find third proportional to 956.81 and 1,483.31
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.