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Finding the Fourth Proportional to 1,977,082.92, 2,965,854.78 and 715,504.68

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Solution

The fourth proportional to 1,977,082.92, 2,965,854.78 and 715,504.68 is: 1,073,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,082.92 : 2,965,854.78 = 715,504.68 : x
  2. Step 2: Convert to fraction form
    1,977,082.92/2,965,854.78 = 715,504.68/x
  3. Step 3: Cross multiply
    1,977,082.92x = 2,965,854.78 × 715,504.68
  4. Step 4: Simplify right side
    1,977,082.92x = 2,122,082,975,290.37
  5. Step 5: Solve for x
    x = 2,122,082,975,290.37/1,977,082.92
  6. Step 6: Final answer
    x = 1,073,340.40

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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.