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Finding the Fourth Proportional to 665,760.06, 918,748.89 and 363,954.06

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Solution

The fourth proportional to 665,760.06, 918,748.89 and 363,954.06 is: 502,256.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,760.06 : 918,748.89 = 363,954.06 : x
  2. Step 2: Convert to fraction form
    665,760.06/918,748.89 = 363,954.06/x
  3. Step 3: Cross multiply
    665,760.06x = 918,748.89 × 363,954.06
  4. Step 4: Simplify right side
    665,760.06x = 334,382,388,635.99
  5. Step 5: Solve for x
    x = 334,382,388,635.99/665,760.06
  6. Step 6: Final answer
    x = 502,256.61

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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.