Home / 1,408,980-1,944,392.40-805,380.96

Finding the Fourth Proportional to 1,408,980, 1,944,392.40 and 805,380.96

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Solution

The fourth proportional to 1,408,980, 1,944,392.40 and 805,380.96 is: 1,111,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,980 : 1,944,392.40 = 805,380.96 : x
  2. Step 2: Convert to fraction form
    1,408,980/1,944,392.40 = 805,380.96/x
  3. Step 3: Cross multiply
    1,408,980x = 1,944,392.40 × 805,380.96
  4. Step 4: Simplify right side
    1,408,980x = 1,565,976,617,728.70
  5. Step 5: Solve for x
    x = 1,565,976,617,728.70/1,408,980
  6. Step 6: Final answer
    x = 1,111,425.72

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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.