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Finding the Fourth Proportional to 1,318,829.97, 1,977,968.13 and 371,979.26

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Solution

The fourth proportional to 1,318,829.97, 1,977,968.13 and 371,979.26 is: 557,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,829.97 : 1,977,968.13 = 371,979.26 : x
  2. Step 2: Convert to fraction form
    1,318,829.97/1,977,968.13 = 371,979.26/x
  3. Step 3: Cross multiply
    1,318,829.97x = 1,977,968.13 × 371,979.26
  4. Step 4: Simplify right side
    1,318,829.97x = 735,763,117,433.60
  5. Step 5: Solve for x
    x = 735,763,117,433.60/1,318,829.97
  6. Step 6: Final answer
    x = 557,890.81

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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.