Home / 462,410-693,615-129,986

Finding the Fourth Proportional to 462,410, 693,615 and 129,986

Calculator

Solution

The fourth proportional to 462,410, 693,615 and 129,986 is: 194,979

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,410 : 693,615 = 129,986 : x
  2. Step 2: Convert to fraction form
    462,410/693,615 = 129,986/x
  3. Step 3: Cross multiply
    462,410x = 693,615 × 129,986
  4. Step 4: Simplify right side
    462,410x = 90,160,239,390
  5. Step 5: Solve for x
    x = 90,160,239,390/462,410
  6. Step 6: Final answer
    x = 194,979

Related Problems

Find fourth proportional to 231,205, 346,807.50 and 64,993
Half scale
Find fourth proportional to 924,820, 1,387,230 and 259,972
Double scale
Find fourth proportional to 462,411, 693,616.50 and 129,987
Similar ratio
Find fourth proportional to 693,615, 1,040,422.50 and 194,979
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.