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Finding the Fourth Proportional to 893,841.60, 1,340,794.80 and 262,819.20

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Solution

The fourth proportional to 893,841.60, 1,340,794.80 and 262,819.20 is: 394,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,841.60 : 1,340,794.80 = 262,819.20 : x
  2. Step 2: Convert to fraction form
    893,841.60/1,340,794.80 = 262,819.20/x
  3. Step 3: Cross multiply
    893,841.60x = 1,340,794.80 × 262,819.20
  4. Step 4: Simplify right side
    893,841.60x = 352,386,616,700.16
  5. Step 5: Solve for x
    x = 352,386,616,700.16/893,841.60
  6. Step 6: Final answer
    x = 394,238.33

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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.