Home / 1,405,865.40-1,940,103.45-761,285.63

Finding the Fourth Proportional to 1,405,865.40, 1,940,103.45 and 761,285.63

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Solution

The fourth proportional to 1,405,865.40, 1,940,103.45 and 761,285.63 is: 1,050,579.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,865.40 : 1,940,103.45 = 761,285.63 : x
  2. Step 2: Convert to fraction form
    1,405,865.40/1,940,103.45 = 761,285.63/x
  3. Step 3: Cross multiply
    1,405,865.40x = 1,940,103.45 × 761,285.63
  4. Step 4: Simplify right side
    1,405,865.40x = 1,476,972,867,497.91
  5. Step 5: Solve for x
    x = 1,476,972,867,497.91/1,405,865.40
  6. Step 6: Final answer
    x = 1,050,579.14

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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.