Home / 1,408,789-1,944,128.84-805,189.96

Finding the Fourth Proportional to 1,408,789, 1,944,128.84 and 805,189.96

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Solution

The fourth proportional to 1,408,789, 1,944,128.84 and 805,189.96 is: 1,111,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,789 : 1,944,128.84 = 805,189.96 : x
  2. Step 2: Convert to fraction form
    1,408,789/1,944,128.84 = 805,189.96/x
  3. Step 3: Cross multiply
    1,408,789x = 1,944,128.84 × 805,189.96
  4. Step 4: Simplify right side
    1,408,789x = 1,565,393,022,914.45
  5. Step 5: Solve for x
    x = 1,565,393,022,914.45/1,408,789
  6. Step 6: Final answer
    x = 1,111,162.16

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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.