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Finding the Fourth Proportional to 1,079,788.63, 1,619,978.88 and 472,466.89

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Solution

The fourth proportional to 1,079,788.63, 1,619,978.88 and 472,466.89 is: 708,829.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,788.63 : 1,619,978.88 = 472,466.89 : x
  2. Step 2: Convert to fraction form
    1,079,788.63/1,619,978.88 = 472,466.89/x
  3. Step 3: Cross multiply
    1,079,788.63x = 1,619,978.88 × 472,466.89
  4. Step 4: Simplify right side
    1,079,788.63x = 765,386,383,299.28
  5. Step 5: Solve for x
    x = 765,386,383,299.28/1,079,788.63
  6. Step 6: Final answer
    x = 708,829.82

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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.