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Finding the Fourth Proportional to 502,247.28, 692,905.92 and 284,405.91

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Solution

The fourth proportional to 502,247.28, 692,905.92 and 284,405.91 is: 392,369.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,247.28 : 692,905.92 = 284,405.91 : x
  2. Step 2: Convert to fraction form
    502,247.28/692,905.92 = 284,405.91/x
  3. Step 3: Cross multiply
    502,247.28x = 692,905.92 × 284,405.91
  4. Step 4: Simplify right side
    502,247.28x = 197,066,537,805.76
  5. Step 5: Solve for x
    x = 197,066,537,805.76/502,247.28
  6. Step 6: Final answer
    x = 392,369.54

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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.