Home / 2,927,429.82-4,391,366.85-905,878.11

Finding the Fourth Proportional to 2,927,429.82, 4,391,366.85 and 905,878.11

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Solution

The fourth proportional to 2,927,429.82, 4,391,366.85 and 905,878.11 is: 1,358,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,429.82 : 4,391,366.85 = 905,878.11 : x
  2. Step 2: Convert to fraction form
    2,927,429.82/4,391,366.85 = 905,878.11/x
  3. Step 3: Cross multiply
    2,927,429.82x = 4,391,366.85 × 905,878.11
  4. Step 4: Simplify right side
    2,927,429.82x = 3,978,043,102,394.65
  5. Step 5: Solve for x
    x = 3,978,043,102,394.65/2,927,429.82
  6. Step 6: Final answer
    x = 1,358,885.90

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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.