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Finding the Fourth Proportional to 519,816, 717,348.24 and 281,352

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Solution

The fourth proportional to 519,816, 717,348.24 and 281,352 is: 388,266.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,816 : 717,348.24 = 281,352 : x
  2. Step 2: Convert to fraction form
    519,816/717,348.24 = 281,352/x
  3. Step 3: Cross multiply
    519,816x = 717,348.24 × 281,352
  4. Step 4: Simplify right side
    519,816x = 201,827,362,020.48
  5. Step 5: Solve for x
    x = 201,827,362,020.48/519,816
  6. Step 6: Final answer
    x = 388,266.93

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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.