Home / 3,120,374.70-4,680,999.45-1,226,675.70

Finding the Fourth Proportional to 3,120,374.70, 4,680,999.45 and 1,226,675.70

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Solution

The fourth proportional to 3,120,374.70, 4,680,999.45 and 1,226,675.70 is: 1,840,185.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,374.70 : 4,680,999.45 = 1,226,675.70 : x
  2. Step 2: Convert to fraction form
    3,120,374.70/4,680,999.45 = 1,226,675.70/x
  3. Step 3: Cross multiply
    3,120,374.70x = 4,680,999.45 × 1,226,675.70
  4. Step 4: Simplify right side
    3,120,374.70x = 5,742,068,277,028.37
  5. Step 5: Solve for x
    x = 5,742,068,277,028.37/3,120,374.70
  6. Step 6: Final answer
    x = 1,840,185.50

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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.