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Finding the Fourth Proportional to 879,626.82, 1,319,443.48 and 374,115.54

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Solution

The fourth proportional to 879,626.82, 1,319,443.48 and 374,115.54 is: 561,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,626.82 : 1,319,443.48 = 374,115.54 : x
  2. Step 2: Convert to fraction form
    879,626.82/1,319,443.48 = 374,115.54/x
  3. Step 3: Cross multiply
    879,626.82x = 1,319,443.48 × 374,115.54
  4. Step 4: Simplify right side
    879,626.82x = 493,624,310,019.68
  5. Step 5: Solve for x
    x = 493,624,310,019.68/879,626.82
  6. Step 6: Final answer
    x = 561,174.69

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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.