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Finding the Fourth Proportional to 936,880, 1,405,358.88 and 272,032

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Solution

The fourth proportional to 936,880, 1,405,358.88 and 272,032 is: 408,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,880 : 1,405,358.88 = 272,032 : x
  2. Step 2: Convert to fraction form
    936,880/1,405,358.88 = 272,032/x
  3. Step 3: Cross multiply
    936,880x = 1,405,358.88 × 272,032
  4. Step 4: Simplify right side
    936,880x = 382,302,586,844.16
  5. Step 5: Solve for x
    x = 382,302,586,844.16/936,880
  6. Step 6: Final answer
    x = 408,059.29

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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.