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Finding the Fourth Proportional to 461,710.14, 635,738.79 and 393,574.38

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Solution

The fourth proportional to 461,710.14, 635,738.79 and 393,574.38 is: 541,921.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,710.14 : 635,738.79 = 393,574.38 : x
  2. Step 2: Convert to fraction form
    461,710.14/635,738.79 = 393,574.38/x
  3. Step 3: Cross multiply
    461,710.14x = 635,738.79 × 393,574.38
  4. Step 4: Simplify right side
    461,710.14x = 250,210,500,116.20
  5. Step 5: Solve for x
    x = 250,210,500,116.20/461,710.14
  6. Step 6: Final answer
    x = 541,921.17

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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.