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Finding the Fourth Proportional to 2,965,176.72, 4,447,765.08 and 721,295.28

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Solution

The fourth proportional to 2,965,176.72, 4,447,765.08 and 721,295.28 is: 1,081,942.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965,176.72 : 4,447,765.08 = 721,295.28 : x
  2. Step 2: Convert to fraction form
    2,965,176.72/4,447,765.08 = 721,295.28/x
  3. Step 3: Cross multiply
    2,965,176.72x = 4,447,765.08 × 721,295.28
  4. Step 4: Simplify right side
    2,965,176.72x = 3,208,151,958,752.82
  5. Step 5: Solve for x
    x = 3,208,151,958,752.82/2,965,176.72
  6. Step 6: Final answer
    x = 1,081,942.92

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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.