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Finding the Fourth Proportional to 700,512.84, 966,529.35 and 428,481.36

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Solution

The fourth proportional to 700,512.84, 966,529.35 and 428,481.36 is: 591,195.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,512.84 : 966,529.35 = 428,481.36 : x
  2. Step 2: Convert to fraction form
    700,512.84/966,529.35 = 428,481.36/x
  3. Step 3: Cross multiply
    700,512.84x = 966,529.35 × 428,481.36
  4. Step 4: Simplify right side
    700,512.84x = 414,139,810,367.92
  5. Step 5: Solve for x
    x = 414,139,810,367.92/700,512.84
  6. Step 6: Final answer
    x = 591,195.17

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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.