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Finding the Fourth Proportional to 490,070, 734,914.62 and 190,510.92

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Solution

The fourth proportional to 490,070, 734,914.62 and 190,510.92 is: 285,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,070 : 734,914.62 = 190,510.92 : x
  2. Step 2: Convert to fraction form
    490,070/734,914.62 = 190,510.92/x
  3. Step 3: Cross multiply
    490,070x = 734,914.62 × 190,510.92
  4. Step 4: Simplify right side
    490,070x = 140,009,260,377.65
  5. Step 5: Solve for x
    x = 140,009,260,377.65/490,070
  6. Step 6: Final answer
    x = 285,692.37

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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.