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Finding the Fourth Proportional to 1,254,784.25, 1,731,612.64 and 681,824.42

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Solution

The fourth proportional to 1,254,784.25, 1,731,612.64 and 681,824.42 is: 940,923.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,784.25 : 1,731,612.64 = 681,824.42 : x
  2. Step 2: Convert to fraction form
    1,254,784.25/1,731,612.64 = 681,824.42/x
  3. Step 3: Cross multiply
    1,254,784.25x = 1,731,612.64 × 681,824.42
  4. Step 4: Simplify right side
    1,254,784.25x = 1,180,655,783,932.67
  5. Step 5: Solve for x
    x = 1,180,655,783,932.67/1,254,784.25
  6. Step 6: Final answer
    x = 940,923.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.