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Finding the Fourth Proportional to 505,877.90, 758,598.15 and 253,060.70

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Solution

The fourth proportional to 505,877.90, 758,598.15 and 253,060.70 is: 379,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,877.90 : 758,598.15 = 253,060.70 : x
  2. Step 2: Convert to fraction form
    505,877.90/758,598.15 = 253,060.70/x
  3. Step 3: Cross multiply
    505,877.90x = 758,598.15 × 253,060.70
  4. Step 4: Simplify right side
    505,877.90x = 191,971,378,857.71
  5. Step 5: Solve for x
    x = 191,971,378,857.71/505,877.90
  6. Step 6: Final answer
    x = 379,481.65

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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.