Home / 1,318,466-1,977,599.64-419,871.44

Finding the Fourth Proportional to 1,318,466, 1,977,599.64 and 419,871.44

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Solution

The fourth proportional to 1,318,466, 1,977,599.64 and 419,871.44 is: 629,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,466 : 1,977,599.64 = 419,871.44 : x
  2. Step 2: Convert to fraction form
    1,318,466/1,977,599.64 = 419,871.44/x
  3. Step 3: Cross multiply
    1,318,466x = 1,977,599.64 × 419,871.44
  4. Step 4: Simplify right side
    1,318,466x = 830,337,608,590.28
  5. Step 5: Solve for x
    x = 830,337,608,590.28/1,318,466
  6. Step 6: Final answer
    x = 629,775.52

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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.