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Finding the Fourth Proportional to 475,863, 656,749.26 and 274,659

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Solution

The fourth proportional to 475,863, 656,749.26 and 274,659 is: 379,063.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,863 : 656,749.26 = 274,659 : x
  2. Step 2: Convert to fraction form
    475,863/656,749.26 = 274,659/x
  3. Step 3: Cross multiply
    475,863x = 656,749.26 × 274,659
  4. Step 4: Simplify right side
    475,863x = 180,382,095,002.34
  5. Step 5: Solve for x
    x = 180,382,095,002.34/475,863
  6. Step 6: Final answer
    x = 379,063.08

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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.