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Finding the Fourth Proportional to 874,864, 1,312,296.82 and 243,794.62

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Solution

The fourth proportional to 874,864, 1,312,296.82 and 243,794.62 is: 365,692.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,864 : 1,312,296.82 = 243,794.62 : x
  2. Step 2: Convert to fraction form
    874,864/1,312,296.82 = 243,794.62/x
  3. Step 3: Cross multiply
    874,864x = 1,312,296.82 × 243,794.62
  4. Step 4: Simplify right side
    874,864x = 319,930,904,559.11
  5. Step 5: Solve for x
    x = 319,930,904,559.11/874,864
  6. Step 6: Final answer
    x = 365,692.16

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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.