Home / 495,978-684,448-269,621.88

Finding the Fourth Proportional to 495,978, 684,448 and 269,621.88

Calculator

Solution

The fourth proportional to 495,978, 684,448 and 269,621.88 is: 372,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,978 : 684,448 = 269,621.88 : x
  2. Step 2: Convert to fraction form
    495,978/684,448 = 269,621.88/x
  3. Step 3: Cross multiply
    495,978x = 684,448 × 269,621.88
  4. Step 4: Simplify right side
    495,978x = 184,542,156,522.24
  5. Step 5: Solve for x
    x = 184,542,156,522.24/495,978
  6. Step 6: Final answer
    x = 372,077.30

Related Problems

Find fourth proportional to 247,989, 342,224 and 134,810.94
Half scale
Find fourth proportional to 991,956, 1,368,896 and 539,243.76
Double scale
Find fourth proportional to 495,979, 684,449.38 and 269,622.88
Similar ratio
Find fourth proportional to 743,967, 1,026,672 and 404,432.82
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.