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Finding the Fourth Proportional to 536,645.40, 804,995.67 and 137,289.62

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Solution

The fourth proportional to 536,645.40, 804,995.67 and 137,289.62 is: 205,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,645.40 : 804,995.67 = 137,289.62 : x
  2. Step 2: Convert to fraction form
    536,645.40/804,995.67 = 137,289.62/x
  3. Step 3: Cross multiply
    536,645.40x = 804,995.67 × 137,289.62
  4. Step 4: Simplify right side
    536,645.40x = 110,517,545,610.97
  5. Step 5: Solve for x
    x = 110,517,545,610.97/536,645.40
  6. Step 6: Final answer
    x = 205,941.48

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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.