Home / 789,826-1,090,135.20-545,154.16

Finding the Fourth Proportional to 789,826, 1,090,135.20 and 545,154.16

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Solution

The fourth proportional to 789,826, 1,090,135.20 and 545,154.16 is: 752,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,826 : 1,090,135.20 = 545,154.16 : x
  2. Step 2: Convert to fraction form
    789,826/1,090,135.20 = 545,154.16/x
  3. Step 3: Cross multiply
    789,826x = 1,090,135.20 × 545,154.16
  4. Step 4: Simplify right side
    789,826x = 594,291,739,242.43
  5. Step 5: Solve for x
    x = 594,291,739,242.43/789,826
  6. Step 6: Final answer
    x = 752,433.75

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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.