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Finding the Fourth Proportional to 488,763.72, 674,494.02 and 297,777.06

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Solution

The fourth proportional to 488,763.72, 674,494.02 and 297,777.06 is: 410,932.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,763.72 : 674,494.02 = 297,777.06 : x
  2. Step 2: Convert to fraction form
    488,763.72/674,494.02 = 297,777.06/x
  3. Step 3: Cross multiply
    488,763.72x = 674,494.02 × 297,777.06
  4. Step 4: Simplify right side
    488,763.72x = 200,848,846,263.18
  5. Step 5: Solve for x
    x = 200,848,846,263.18/488,763.72
  6. Step 6: Final answer
    x = 410,932.40

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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.