Home / 720,008.91-993,601.97-393,317.96

Finding the Fourth Proportional to 720,008.91, 993,601.97 and 393,317.96

Calculator

Solution

The fourth proportional to 720,008.91, 993,601.97 and 393,317.96 is: 542,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,008.91 : 993,601.97 = 393,317.96 : x
  2. Step 2: Convert to fraction form
    720,008.91/993,601.97 = 393,317.96/x
  3. Step 3: Cross multiply
    720,008.91x = 993,601.97 × 393,317.96
  4. Step 4: Simplify right side
    720,008.91x = 390,801,492,957.78
  5. Step 5: Solve for x
    x = 390,801,492,957.78/720,008.91
  6. Step 6: Final answer
    x = 542,773.13

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.