Home / 822,678.54-1,135,380.15-500,410.86

Finding the Fourth Proportional to 822,678.54, 1,135,380.15 and 500,410.86

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Solution

The fourth proportional to 822,678.54, 1,135,380.15 and 500,410.86 is: 690,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,678.54 : 1,135,380.15 = 500,410.86 : x
  2. Step 2: Convert to fraction form
    822,678.54/1,135,380.15 = 500,410.86/x
  3. Step 3: Cross multiply
    822,678.54x = 1,135,380.15 × 500,410.86
  4. Step 4: Simplify right side
    822,678.54x = 568,156,557,288.43
  5. Step 5: Solve for x
    x = 568,156,557,288.43/822,678.54
  6. Step 6: Final answer
    x = 690,617.94

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1.5x scale

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.