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Finding the Fourth Proportional to 579,007.20, 868,306 and 275,365.60

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Solution

The fourth proportional to 579,007.20, 868,306 and 275,365.60 is: 412,951.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,007.20 : 868,306 = 275,365.60 : x
  2. Step 2: Convert to fraction form
    579,007.20/868,306 = 275,365.60/x
  3. Step 3: Cross multiply
    579,007.20x = 868,306 × 275,365.60
  4. Step 4: Simplify right side
    579,007.20x = 239,101,602,673.60
  5. Step 5: Solve for x
    x = 239,101,602,673.60/579,007.20
  6. Step 6: Final answer
    x = 412,951.00

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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.