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Finding the Fourth Proportional to 1,686,755, 2,530,134.93 and 689,483

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Solution

The fourth proportional to 1,686,755, 2,530,134.93 and 689,483 is: 1,034,225.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,755 : 2,530,134.93 = 689,483 : x
  2. Step 2: Convert to fraction form
    1,686,755/2,530,134.93 = 689,483/x
  3. Step 3: Cross multiply
    1,686,755x = 2,530,134.93 × 689,483
  4. Step 4: Simplify right side
    1,686,755x = 1,744,485,021,941.19
  5. Step 5: Solve for x
    x = 1,744,485,021,941.19/1,686,755
  6. Step 6: Final answer
    x = 1,034,225.49

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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.