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Finding the Fourth Proportional to 1,879,679.66, 2,819,068.04 and 867,829.43

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Solution

The fourth proportional to 1,879,679.66, 2,819,068.04 and 867,829.43 is: 1,301,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,879,679.66 : 2,819,068.04 = 867,829.43 : x
  2. Step 2: Convert to fraction form
    1,879,679.66/2,819,068.04 = 867,829.43/x
  3. Step 3: Cross multiply
    1,879,679.66x = 2,819,068.04 × 867,829.43
  4. Step 4: Simplify right side
    1,879,679.66x = 2,446,470,208,046.87
  5. Step 5: Solve for x
    x = 2,446,470,208,046.87/1,879,679.66
  6. Step 6: Final answer
    x = 1,301,535.71

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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.