Home / 474,858-712,287-142,434

Finding the Fourth Proportional to 474,858, 712,287 and 142,434

Calculator

Solution

The fourth proportional to 474,858, 712,287 and 142,434 is: 213,651

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,858 : 712,287 = 142,434 : x
  2. Step 2: Convert to fraction form
    474,858/712,287 = 142,434/x
  3. Step 3: Cross multiply
    474,858x = 712,287 × 142,434
  4. Step 4: Simplify right side
    474,858x = 101,453,886,558
  5. Step 5: Solve for x
    x = 101,453,886,558/474,858
  6. Step 6: Final answer
    x = 213,651

Related Problems

Find fourth proportional to 237,429, 356,143.50 and 71,217
Half scale
Find fourth proportional to 949,716, 1,424,574 and 284,868
Double scale
Find fourth proportional to 474,859, 712,288.50 and 142,435
Similar ratio
Find fourth proportional to 712,287, 1,068,430.50 and 213,651
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.