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Finding the Fourth Proportional to 525,676.66, 788,580.61 and 205,787.21

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Solution

The fourth proportional to 525,676.66, 788,580.61 and 205,787.21 is: 308,706.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,676.66 : 788,580.61 = 205,787.21 : x
  2. Step 2: Convert to fraction form
    525,676.66/788,580.61 = 205,787.21/x
  3. Step 3: Cross multiply
    525,676.66x = 788,580.61 × 205,787.21
  4. Step 4: Simplify right side
    525,676.66x = 162,279,799,134.63
  5. Step 5: Solve for x
    x = 162,279,799,134.63/525,676.66
  6. Step 6: Final answer
    x = 308,706.50

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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.