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Finding the Fourth Proportional to 536,243.39, 804,354.64 and 216,386.78

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Solution

The fourth proportional to 536,243.39, 804,354.64 and 216,386.78 is: 324,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,243.39 : 804,354.64 = 216,386.78 : x
  2. Step 2: Convert to fraction form
    536,243.39/804,354.64 = 216,386.78/x
  3. Step 3: Cross multiply
    536,243.39x = 804,354.64 × 216,386.78
  4. Step 4: Simplify right side
    536,243.39x = 174,051,705,964.92
  5. Step 5: Solve for x
    x = 174,051,705,964.92/536,243.39
  6. Step 6: Final answer
    x = 324,575.95

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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.