Home / 1,116.78-1,675.35-468

Finding the Fourth Proportional to 1,116.78, 1,675.35 and 468

Calculator

Solution

The fourth proportional to 1,116.78, 1,675.35 and 468 is: 702.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.78 : 1,675.35 = 468 : x
  2. Step 2: Convert to fraction form
    1,116.78/1,675.35 = 468/x
  3. Step 3: Cross multiply
    1,116.78x = 1,675.35 × 468
  4. Step 4: Simplify right side
    1,116.78x = 784,063.80
  5. Step 5: Solve for x
    x = 784,063.80/1,116.78
  6. Step 6: Final answer
    x = 702.08

Related Problems

Find fourth proportional to 558.39, 837.68 and 234
Half scale
Find fourth proportional to 2,233.56, 3,350.70 and 936
Double scale
Find fourth proportional to 1,117.78, 1,676.85 and 469
Similar ratio
Find fourth proportional to 1,675.17, 2,513.03 and 702
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.