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Finding the Fourth Proportional to 557,070.25, 768,766.26 and 302,421.44

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Solution

The fourth proportional to 557,070.25, 768,766.26 and 302,421.44 is: 417,346.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,070.25 : 768,766.26 = 302,421.44 : x
  2. Step 2: Convert to fraction form
    557,070.25/768,766.26 = 302,421.44/x
  3. Step 3: Cross multiply
    557,070.25x = 768,766.26 × 302,421.44
  4. Step 4: Simplify right side
    557,070.25x = 232,491,399,372.61
  5. Step 5: Solve for x
    x = 232,491,399,372.61/557,070.25
  6. Step 6: Final answer
    x = 417,346.64

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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.