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Finding the Fourth Proportional to 1,299,468.97, 1,945,402.53 and 758,069.83

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Solution

The fourth proportional to 1,299,468.97, 1,945,402.53 and 758,069.83 is: 1,134,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,468.97 : 1,945,402.53 = 758,069.83 : x
  2. Step 2: Convert to fraction form
    1,299,468.97/1,945,402.53 = 758,069.83/x
  3. Step 3: Cross multiply
    1,299,468.97x = 1,945,402.53 × 758,069.83
  4. Step 4: Simplify right side
    1,299,468.97x = 1,474,750,965,198.67
  5. Step 5: Solve for x
    x = 1,474,750,965,198.67/1,299,468.97
  6. Step 6: Final answer
    x = 1,134,887.40

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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.