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Finding the Fourth Proportional to 2,978,269.18, 4,466,815.53 and 818,737.08

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Solution

The fourth proportional to 2,978,269.18, 4,466,815.53 and 818,737.08 is: 1,227,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,269.18 : 4,466,815.53 = 818,737.08 : x
  2. Step 2: Convert to fraction form
    2,978,269.18/4,466,815.53 = 818,737.08/x
  3. Step 3: Cross multiply
    2,978,269.18x = 4,466,815.53 × 818,737.08
  4. Step 4: Simplify right side
    2,978,269.18x = 3,657,147,503,930.85
  5. Step 5: Solve for x
    x = 3,657,147,503,930.85/2,978,269.18
  6. Step 6: Final answer
    x = 1,227,943.91

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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.