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Finding the Fourth Proportional to 768,231.20, 1,152,001.20 and 294,759.20

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Solution

The fourth proportional to 768,231.20, 1,152,001.20 and 294,759.20 is: 442,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,231.20 : 1,152,001.20 = 294,759.20 : x
  2. Step 2: Convert to fraction form
    768,231.20/1,152,001.20 = 294,759.20/x
  3. Step 3: Cross multiply
    768,231.20x = 1,152,001.20 × 294,759.20
  4. Step 4: Simplify right side
    768,231.20x = 339,562,952,111.04
  5. Step 5: Solve for x
    x = 339,562,952,111.04/768,231.20
  6. Step 6: Final answer
    x = 442,006.20

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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.