Home / 1,318,552.72-1,977,174.79-419,877.37

Finding the Fourth Proportional to 1,318,552.72, 1,977,174.79 and 419,877.37

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Solution

The fourth proportional to 1,318,552.72, 1,977,174.79 and 419,877.37 is: 629,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,552.72 : 1,977,174.79 = 419,877.37 : x
  2. Step 2: Convert to fraction form
    1,318,552.72/1,977,174.79 = 419,877.37/x
  3. Step 3: Cross multiply
    1,318,552.72x = 1,977,174.79 × 419,877.37
  4. Step 4: Simplify right side
    1,318,552.72x = 830,170,948,756.12
  5. Step 5: Solve for x
    x = 830,170,948,756.12/1,318,552.72
  6. Step 6: Final answer
    x = 629,607.70

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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.