Home / 1,311,942.40-1,968,374.40-470,521.60

Finding the Fourth Proportional to 1,311,942.40, 1,968,374.40 and 470,521.60

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Solution

The fourth proportional to 1,311,942.40, 1,968,374.40 and 470,521.60 is: 705,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,942.40 : 1,968,374.40 = 470,521.60 : x
  2. Step 2: Convert to fraction form
    1,311,942.40/1,968,374.40 = 470,521.60/x
  3. Step 3: Cross multiply
    1,311,942.40x = 1,968,374.40 × 470,521.60
  4. Step 4: Simplify right side
    1,311,942.40x = 926,162,672,087.04
  5. Step 5: Solve for x
    x = 926,162,672,087.04/1,311,942.40
  6. Step 6: Final answer
    x = 705,947.66

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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.