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Finding the Fourth Proportional to 525,283.52, 786,662.70 and 299,961.77

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Solution

The fourth proportional to 525,283.52, 786,662.70 and 299,961.77 is: 449,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,283.52 : 786,662.70 = 299,961.77 : x
  2. Step 2: Convert to fraction form
    525,283.52/786,662.70 = 299,961.77/x
  3. Step 3: Cross multiply
    525,283.52x = 786,662.70 × 299,961.77
  4. Step 4: Simplify right side
    525,283.52x = 235,968,735,884.98
  5. Step 5: Solve for x
    x = 235,968,735,884.98/525,283.52
  6. Step 6: Final answer
    x = 449,221.66

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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.