Home / 1,318,476-1,977,614.64-419,881.44

Finding the Fourth Proportional to 1,318,476, 1,977,614.64 and 419,881.44

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Solution

The fourth proportional to 1,318,476, 1,977,614.64 and 419,881.44 is: 629,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,476 : 1,977,614.64 = 419,881.44 : x
  2. Step 2: Convert to fraction form
    1,318,476/1,977,614.64 = 419,881.44/x
  3. Step 3: Cross multiply
    1,318,476x = 1,977,614.64 × 419,881.44
  4. Step 4: Simplify right side
    1,318,476x = 830,363,682,808.28
  5. Step 5: Solve for x
    x = 830,363,682,808.28/1,318,476
  6. Step 6: Final answer
    x = 629,790.52

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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.