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Finding the Fourth Proportional to 557,520.60, 769,374.18 and 302,873.61

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Solution

The fourth proportional to 557,520.60, 769,374.18 and 302,873.61 is: 417,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,520.60 : 769,374.18 = 302,873.61 : x
  2. Step 2: Convert to fraction form
    557,520.60/769,374.18 = 302,873.61/x
  3. Step 3: Cross multiply
    557,520.60x = 769,374.18 × 302,873.61
  4. Step 4: Simplify right side
    557,520.60x = 233,023,135,337.39
  5. Step 5: Solve for x
    x = 233,023,135,337.39/557,520.60
  6. Step 6: Final answer
    x = 417,963.27

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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.