Home / 839,667.31-1,158,740.92-457,694.09

Finding the Fourth Proportional to 839,667.31, 1,158,740.92 and 457,694.09

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Solution

The fourth proportional to 839,667.31, 1,158,740.92 and 457,694.09 is: 631,617.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,667.31 : 1,158,740.92 = 457,694.09 : x
  2. Step 2: Convert to fraction form
    839,667.31/1,158,740.92 = 457,694.09/x
  3. Step 3: Cross multiply
    839,667.31x = 1,158,740.92 × 457,694.09
  4. Step 4: Simplify right side
    839,667.31x = 530,348,863,987.22
  5. Step 5: Solve for x
    x = 530,348,863,987.22/839,667.31
  6. Step 6: Final answer
    x = 631,617.86

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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.