Home / 867,116.28-1,196,520.62-499,647

Finding the Fourth Proportional to 867,116.28, 1,196,520.62 and 499,647

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Solution

The fourth proportional to 867,116.28, 1,196,520.62 and 499,647 is: 689,455.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,116.28 : 1,196,520.62 = 499,647 : x
  2. Step 2: Convert to fraction form
    867,116.28/1,196,520.62 = 499,647/x
  3. Step 3: Cross multiply
    867,116.28x = 1,196,520.62 × 499,647
  4. Step 4: Simplify right side
    867,116.28x = 597,837,938,221.14
  5. Step 5: Solve for x
    x = 597,837,938,221.14/867,116.28
  6. Step 6: Final answer
    x = 689,455.33

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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.