Home / 839,635.62-1,158,662.79-457,654.02

Finding the Fourth Proportional to 839,635.62, 1,158,662.79 and 457,654.02

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Solution

The fourth proportional to 839,635.62, 1,158,662.79 and 457,654.02 is: 631,543.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,635.62 : 1,158,662.79 = 457,654.02 : x
  2. Step 2: Convert to fraction form
    839,635.62/1,158,662.79 = 457,654.02/x
  3. Step 3: Cross multiply
    839,635.62x = 1,158,662.79 × 457,654.02
  4. Step 4: Simplify right side
    839,635.62x = 530,266,683,667.92
  5. Step 5: Solve for x
    x = 530,266,683,667.92/839,635.62
  6. Step 6: Final answer
    x = 631,543.82

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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.