Home / 286,640.90-429,961.35-73,408.40

Finding the Fourth Proportional to 286,640.90, 429,961.35 and 73,408.40

Calculator

Solution

The fourth proportional to 286,640.90, 429,961.35 and 73,408.40 is: 110,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,640.90 : 429,961.35 = 73,408.40 : x
  2. Step 2: Convert to fraction form
    286,640.90/429,961.35 = 73,408.40/x
  3. Step 3: Cross multiply
    286,640.90x = 429,961.35 × 73,408.40
  4. Step 4: Simplify right side
    286,640.90x = 31,562,774,765.34
  5. Step 5: Solve for x
    x = 31,562,774,765.34/286,640.90
  6. Step 6: Final answer
    x = 110,112.60

Related Problems

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.