Home / 1,686,512.32-2,529,755.04-688,540.48

Finding the Fourth Proportional to 1,686,512.32, 2,529,755.04 and 688,540.48

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Solution

The fourth proportional to 1,686,512.32, 2,529,755.04 and 688,540.48 is: 1,032,805.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,512.32 : 2,529,755.04 = 688,540.48 : x
  2. Step 2: Convert to fraction form
    1,686,512.32/2,529,755.04 = 688,540.48/x
  3. Step 3: Cross multiply
    1,686,512.32x = 2,529,755.04 × 688,540.48
  4. Step 4: Simplify right side
    1,686,512.32x = 1,741,838,749,524.02
  5. Step 5: Solve for x
    x = 1,741,838,749,524.02/1,686,512.32
  6. Step 6: Final answer
    x = 1,032,805.23

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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.