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Finding the Fourth Proportional to 690,563.88, 952,648.11 and 536,548.05

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Solution

The fourth proportional to 690,563.88, 952,648.11 and 536,548.05 is: 740,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,563.88 : 952,648.11 = 536,548.05 : x
  2. Step 2: Convert to fraction form
    690,563.88/952,648.11 = 536,548.05/x
  3. Step 3: Cross multiply
    690,563.88x = 952,648.11 × 536,548.05
  4. Step 4: Simplify right side
    690,563.88x = 511,141,485,756.69
  5. Step 5: Solve for x
    x = 511,141,485,756.69/690,563.88
  6. Step 6: Final answer
    x = 740,179.87

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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.