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Finding the Fourth Proportional to 570,665.08, 787,517.10 and 316,015.96

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Solution

The fourth proportional to 570,665.08, 787,517.10 and 316,015.96 is: 436,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,665.08 : 787,517.10 = 316,015.96 : x
  2. Step 2: Convert to fraction form
    570,665.08/787,517.10 = 316,015.96/x
  3. Step 3: Cross multiply
    570,665.08x = 787,517.10 × 316,015.96
  4. Step 4: Simplify right side
    570,665.08x = 248,867,972,372.92
  5. Step 5: Solve for x
    x = 248,867,972,372.92/570,665.08
  6. Step 6: Final answer
    x = 436,101.63

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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.