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Finding the Fourth Proportional to 453,660.35, 680,033.07 and 285,300.98

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Solution

The fourth proportional to 453,660.35, 680,033.07 and 285,300.98 is: 427,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,660.35 : 680,033.07 = 285,300.98 : x
  2. Step 2: Convert to fraction form
    453,660.35/680,033.07 = 285,300.98/x
  3. Step 3: Cross multiply
    453,660.35x = 680,033.07 × 285,300.98
  4. Step 4: Simplify right side
    453,660.35x = 194,014,104,278.55
  5. Step 5: Solve for x
    x = 194,014,104,278.55/453,660.35
  6. Step 6: Final answer
    x = 427,663.79

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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.