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Finding the Fourth Proportional to 802,671.60, 1,204,007.40 and 763,305.60

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Solution

The fourth proportional to 802,671.60, 1,204,007.40 and 763,305.60 is: 1,144,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,671.60 : 1,204,007.40 = 763,305.60 : x
  2. Step 2: Convert to fraction form
    802,671.60/1,204,007.40 = 763,305.60/x
  3. Step 3: Cross multiply
    802,671.60x = 1,204,007.40 × 763,305.60
  4. Step 4: Simplify right side
    802,671.60x = 919,025,590,861.44
  5. Step 5: Solve for x
    x = 919,025,590,861.44/802,671.60
  6. Step 6: Final answer
    x = 1,144,958.40

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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.