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Finding the Fourth Proportional to 1,318,797.29, 1,977,919.13 and 371,946.57

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Solution

The fourth proportional to 1,318,797.29, 1,977,919.13 and 371,946.57 is: 557,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,797.29 : 1,977,919.13 = 371,946.57 : x
  2. Step 2: Convert to fraction form
    1,318,797.29/1,977,919.13 = 371,946.57/x
  3. Step 3: Cross multiply
    1,318,797.29x = 1,977,919.13 × 371,946.57
  4. Step 4: Simplify right side
    1,318,797.29x = 735,680,236,140.88
  5. Step 5: Solve for x
    x = 735,680,236,140.88/1,318,797.29
  6. Step 6: Final answer
    x = 557,841.79

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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.