Home / 608.06-911.98-506

Finding the Fourth Proportional to 608.06, 911.98 and 506

Calculator

Solution

The fourth proportional to 608.06, 911.98 and 506 is: 758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.06 : 911.98 = 506 : x
  2. Step 2: Convert to fraction form
    608.06/911.98 = 506/x
  3. Step 3: Cross multiply
    608.06x = 911.98 × 506
  4. Step 4: Simplify right side
    608.06x = 461,461.88
  5. Step 5: Solve for x
    x = 461,461.88/608.06
  6. Step 6: Final answer
    x = 758.91

Related Problems

Find fourth proportional to 304.03, 455.99 and 253
Half scale
Find fourth proportional to 1,216.12, 1,823.96 and 1,012
Double scale
Find fourth proportional to 609.06, 913.48 and 507
Similar ratio
Find fourth proportional to 912.09, 1,367.97 and 759
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.