Home / 1,405,847.45-1,940,078.72-761,267.70

Finding the Fourth Proportional to 1,405,847.45, 1,940,078.72 and 761,267.70

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Solution

The fourth proportional to 1,405,847.45, 1,940,078.72 and 761,267.70 is: 1,050,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,847.45 : 1,940,078.72 = 761,267.70 : x
  2. Step 2: Convert to fraction form
    1,405,847.45/1,940,078.72 = 761,267.70/x
  3. Step 3: Cross multiply
    1,405,847.45x = 1,940,078.72 × 761,267.70
  4. Step 4: Simplify right side
    1,405,847.45x = 1,476,919,255,339.09
  5. Step 5: Solve for x
    x = 1,476,919,255,339.09/1,405,847.45
  6. Step 6: Final answer
    x = 1,050,554.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.