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Finding the Fourth Proportional to 1,686,753, 2,530,131.93 and 689,481

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Solution

The fourth proportional to 1,686,753, 2,530,131.93 and 689,481 is: 1,034,222.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,753 : 2,530,131.93 = 689,481 : x
  2. Step 2: Convert to fraction form
    1,686,753/2,530,131.93 = 689,481/x
  3. Step 3: Cross multiply
    1,686,753x = 2,530,131.93 × 689,481
  4. Step 4: Simplify right side
    1,686,753x = 1,744,477,893,228.33
  5. Step 5: Solve for x
    x = 1,744,477,893,228.33/1,686,753
  6. Step 6: Final answer
    x = 1,034,222.49

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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.