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Finding the Fourth Proportional to 635,528.20, 877,034.10 and 349,051.72

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Solution

The fourth proportional to 635,528.20, 877,034.10 and 349,051.72 is: 481,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,528.20 : 877,034.10 = 349,051.72 : x
  2. Step 2: Convert to fraction form
    635,528.20/877,034.10 = 349,051.72/x
  3. Step 3: Cross multiply
    635,528.20x = 877,034.10 × 349,051.72
  4. Step 4: Simplify right side
    635,528.20x = 306,130,261,103.65
  5. Step 5: Solve for x
    x = 306,130,261,103.65/635,528.20
  6. Step 6: Final answer
    x = 481,694.22

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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.