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Finding the Fourth Proportional to 379,763.58, 569,147.04 and 279,454.08

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Solution

The fourth proportional to 379,763.58, 569,147.04 and 279,454.08 is: 418,814.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,763.58 : 569,147.04 = 279,454.08 : x
  2. Step 2: Convert to fraction form
    379,763.58/569,147.04 = 279,454.08/x
  3. Step 3: Cross multiply
    379,763.58x = 569,147.04 × 279,454.08
  4. Step 4: Simplify right side
    379,763.58x = 159,050,462,447.92
  5. Step 5: Solve for x
    x = 159,050,462,447.92/379,763.58
  6. Step 6: Final answer
    x = 418,814.42

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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.