Home / 386,012.16-578,999.70-105,530.04

Finding the Fourth Proportional to 386,012.16, 578,999.70 and 105,530.04

Calculator

Solution

The fourth proportional to 386,012.16, 578,999.70 and 105,530.04 is: 158,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,012.16 : 578,999.70 = 105,530.04 : x
  2. Step 2: Convert to fraction form
    386,012.16/578,999.70 = 105,530.04/x
  3. Step 3: Cross multiply
    386,012.16x = 578,999.70 × 105,530.04
  4. Step 4: Simplify right side
    386,012.16x = 61,101,861,500.99
  5. Step 5: Solve for x
    x = 61,101,861,500.99/386,012.16
  6. Step 6: Final answer
    x = 158,289.99

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.