Home / 918,866.76-1,378,299.32-287,829.80

Finding the Fourth Proportional to 918,866.76, 1,378,299.32 and 287,829.80

Calculator

Solution

The fourth proportional to 918,866.76, 1,378,299.32 and 287,829.80 is: 431,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,866.76 : 1,378,299.32 = 287,829.80 : x
  2. Step 2: Convert to fraction form
    918,866.76/1,378,299.32 = 287,829.80/x
  3. Step 3: Cross multiply
    918,866.76x = 1,378,299.32 × 287,829.80
  4. Step 4: Simplify right side
    918,866.76x = 396,715,617,615.74
  5. Step 5: Solve for x
    x = 396,715,617,615.74/918,866.76
  6. Step 6: Final answer
    x = 431,744.44

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.