Home / 470-704.88-277.76

Finding the Fourth Proportional to 470, 704.88 and 277.76

Calculator

Solution

The fourth proportional to 470, 704.88 and 277.76 is: 416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    470 : 704.88 = 277.76 : x
  2. Step 2: Convert to fraction form
    470/704.88 = 277.76/x
  3. Step 3: Cross multiply
    470x = 704.88 × 277.76
  4. Step 4: Simplify right side
    470x = 195,787.47
  5. Step 5: Solve for x
    x = 195,787.47/470
  6. Step 6: Final answer
    x = 416.57

Related Problems

Find fourth proportional to 235, 352.44 and 138.88
Half scale
Find fourth proportional to 940, 1,409.76 and 555.52
Double scale
Find fourth proportional to 471, 706.38 and 278.76
Similar ratio
Find fourth proportional to 705, 1,057.32 and 416.64
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.