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Finding the Fourth Proportional to 497,252.60, 745,878.90 and 419,492.60

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Solution

The fourth proportional to 497,252.60, 745,878.90 and 419,492.60 is: 629,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,252.60 : 745,878.90 = 419,492.60 : x
  2. Step 2: Convert to fraction form
    497,252.60/745,878.90 = 419,492.60/x
  3. Step 3: Cross multiply
    497,252.60x = 745,878.90 × 419,492.60
  4. Step 4: Simplify right side
    497,252.60x = 312,890,679,046.14
  5. Step 5: Solve for x
    x = 312,890,679,046.14/497,252.60
  6. Step 6: Final answer
    x = 629,238.90

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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.