Home / 1,216,813.21-1,679,426.87-781,774.39

Finding the Fourth Proportional to 1,216,813.21, 1,679,426.87 and 781,774.39

Calculator

Solution

The fourth proportional to 1,216,813.21, 1,679,426.87 and 781,774.39 is: 1,078,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,813.21 : 1,679,426.87 = 781,774.39 : x
  2. Step 2: Convert to fraction form
    1,216,813.21/1,679,426.87 = 781,774.39/x
  3. Step 3: Cross multiply
    1,216,813.21x = 1,679,426.87 × 781,774.39
  4. Step 4: Simplify right side
    1,216,813.21x = 1,312,932,909,130.03
  5. Step 5: Solve for x
    x = 1,312,932,909,130.03/1,216,813.21
  6. Step 6: Final answer
    x = 1,078,992.98

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.