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Finding the Fourth Proportional to 671,783.60, 927,251.88 and 442,508.24

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Solution

The fourth proportional to 671,783.60, 927,251.88 and 442,508.24 is: 610,786.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,783.60 : 927,251.88 = 442,508.24 : x
  2. Step 2: Convert to fraction form
    671,783.60/927,251.88 = 442,508.24/x
  3. Step 3: Cross multiply
    671,783.60x = 927,251.88 × 442,508.24
  4. Step 4: Simplify right side
    671,783.60x = 410,316,597,455.49
  5. Step 5: Solve for x
    x = 410,316,597,455.49/671,783.60
  6. Step 6: Final answer
    x = 610,786.86

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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.