Home / 782,387.48-1,079,721.28-438,238.20

Finding the Fourth Proportional to 782,387.48, 1,079,721.28 and 438,238.20

Calculator

Solution

The fourth proportional to 782,387.48, 1,079,721.28 and 438,238.20 is: 604,783.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,387.48 : 1,079,721.28 = 438,238.20 : x
  2. Step 2: Convert to fraction form
    782,387.48/1,079,721.28 = 438,238.20/x
  3. Step 3: Cross multiply
    782,387.48x = 1,079,721.28 × 438,238.20
  4. Step 4: Simplify right side
    782,387.48x = 473,175,110,248.90
  5. Step 5: Solve for x
    x = 473,175,110,248.90/782,387.48
  6. Step 6: Final answer
    x = 604,783.59

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.