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Finding the Fourth Proportional to 1,318,797.02, 1,977,918.74 and 371,946.31

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Solution

The fourth proportional to 1,318,797.02, 1,977,918.74 and 371,946.31 is: 557,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,797.02 : 1,977,918.74 = 371,946.31 : x
  2. Step 2: Convert to fraction form
    1,318,797.02/1,977,918.74 = 371,946.31/x
  3. Step 3: Cross multiply
    1,318,797.02x = 1,977,918.74 × 371,946.31
  4. Step 4: Simplify right side
    1,318,797.02x = 735,679,570,367.02
  5. Step 5: Solve for x
    x = 735,679,570,367.02/1,318,797.02
  6. Step 6: Final answer
    x = 557,841.39

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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.