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Finding the Fourth Proportional to 893,560.80, 1,340,211.60 and 262,408.80

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Solution

The fourth proportional to 893,560.80, 1,340,211.60 and 262,408.80 is: 393,575.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,560.80 : 1,340,211.60 = 262,408.80 : x
  2. Step 2: Convert to fraction form
    893,560.80/1,340,211.60 = 262,408.80/x
  3. Step 3: Cross multiply
    893,560.80x = 1,340,211.60 × 262,408.80
  4. Step 4: Simplify right side
    893,560.80x = 351,683,317,702.08
  5. Step 5: Solve for x
    x = 351,683,317,702.08/893,560.80
  6. Step 6: Final answer
    x = 393,575.14

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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.