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Finding the Fourth Proportional to 537,993.54, 742,433.31 and 308,559.69

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Solution

The fourth proportional to 537,993.54, 742,433.31 and 308,559.69 is: 425,813.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,993.54 : 742,433.31 = 308,559.69 : x
  2. Step 2: Convert to fraction form
    537,993.54/742,433.31 = 308,559.69/x
  3. Step 3: Cross multiply
    537,993.54x = 742,433.31 × 308,559.69
  4. Step 4: Simplify right side
    537,993.54x = 229,084,991,979.27
  5. Step 5: Solve for x
    x = 229,084,991,979.27/537,993.54
  6. Step 6: Final answer
    x = 425,813.65

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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.