Home / 1,095,078.30-1,641,839.85-420,899.10

Finding the Fourth Proportional to 1,095,078.30, 1,641,839.85 and 420,899.10

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Solution

The fourth proportional to 1,095,078.30, 1,641,839.85 and 420,899.10 is: 631,049.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,078.30 : 1,641,839.85 = 420,899.10 : x
  2. Step 2: Convert to fraction form
    1,095,078.30/1,641,839.85 = 420,899.10/x
  3. Step 3: Cross multiply
    1,095,078.30x = 1,641,839.85 × 420,899.10
  4. Step 4: Simplify right side
    1,095,078.30x = 691,048,915,209.14
  5. Step 5: Solve for x
    x = 691,048,915,209.14/1,095,078.30
  6. Step 6: Final answer
    x = 631,049.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.