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Finding the Fourth Proportional to 418,958.11, 578,061.41 and 246,883.12

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Solution

The fourth proportional to 418,958.11, 578,061.41 and 246,883.12 is: 340,639.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,958.11 : 578,061.41 = 246,883.12 : x
  2. Step 2: Convert to fraction form
    418,958.11/578,061.41 = 246,883.12/x
  3. Step 3: Cross multiply
    418,958.11x = 578,061.41 × 246,883.12
  4. Step 4: Simplify right side
    418,958.11x = 142,713,602,698.64
  5. Step 5: Solve for x
    x = 142,713,602,698.64/418,958.11
  6. Step 6: Final answer
    x = 340,639.31

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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.