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Finding the Fourth Proportional to 1,259,946.45, 1,889,919.68 and 834,793.65

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Solution

The fourth proportional to 1,259,946.45, 1,889,919.68 and 834,793.65 is: 1,252,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,946.45 : 1,889,919.68 = 834,793.65 : x
  2. Step 2: Convert to fraction form
    1,259,946.45/1,889,919.68 = 834,793.65/x
  3. Step 3: Cross multiply
    1,259,946.45x = 1,889,919.68 × 834,793.65
  4. Step 4: Simplify right side
    1,259,946.45x = 1,577,692,943,700.06
  5. Step 5: Solve for x
    x = 1,577,692,943,700.06/1,259,946.45
  6. Step 6: Final answer
    x = 1,252,190.48

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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.