Home / 1,408,924.82-2,111,705.71-769,389.55

Finding the Fourth Proportional to 1,408,924.82, 2,111,705.71 and 769,389.55

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Solution

The fourth proportional to 1,408,924.82, 2,111,705.71 and 769,389.55 is: 1,153,166.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,924.82 : 2,111,705.71 = 769,389.55 : x
  2. Step 2: Convert to fraction form
    1,408,924.82/2,111,705.71 = 769,389.55/x
  3. Step 3: Cross multiply
    1,408,924.82x = 2,111,705.71 × 769,389.55
  4. Step 4: Simplify right side
    1,408,924.82x = 1,624,724,310,624.94
  5. Step 5: Solve for x
    x = 1,624,724,310,624.94/1,408,924.82
  6. Step 6: Final answer
    x = 1,153,166.08

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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.