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Finding the Fourth Proportional to 878,682.80, 1,317,765.83 and 373,239.77

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Solution

The fourth proportional to 878,682.80, 1,317,765.83 and 373,239.77 is: 559,749.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,682.80 : 1,317,765.83 = 373,239.77 : x
  2. Step 2: Convert to fraction form
    878,682.80/1,317,765.83 = 373,239.77/x
  3. Step 3: Cross multiply
    878,682.80x = 1,317,765.83 × 373,239.77
  4. Step 4: Simplify right side
    878,682.80x = 491,842,606,848.03
  5. Step 5: Solve for x
    x = 491,842,606,848.03/878,682.80
  6. Step 6: Final answer
    x = 559,749.90

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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.