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Finding the Fourth Proportional to 557,459.87, 768,857.00 and 492,998.04

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Solution

The fourth proportional to 557,459.87, 768,857.00 and 492,998.04 is: 679,950.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,459.87 : 768,857.00 = 492,998.04 : x
  2. Step 2: Convert to fraction form
    557,459.87/768,857.00 = 492,998.04/x
  3. Step 3: Cross multiply
    557,459.87x = 768,857.00 × 492,998.04
  4. Step 4: Simplify right side
    557,459.87x = 379,044,991,575.29
  5. Step 5: Solve for x
    x = 379,044,991,575.29/557,459.87
  6. Step 6: Final answer
    x = 679,950.28

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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.