Home / 1,272,786.81-1,908,679.83-462,979

Finding the Fourth Proportional to 1,272,786.81, 1,908,679.83 and 462,979

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Solution

The fourth proportional to 1,272,786.81, 1,908,679.83 and 462,979 is: 694,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,786.81 : 1,908,679.83 = 462,979 : x
  2. Step 2: Convert to fraction form
    1,272,786.81/1,908,679.83 = 462,979/x
  3. Step 3: Cross multiply
    1,272,786.81x = 1,908,679.83 × 462,979
  4. Step 4: Simplify right side
    1,272,786.81x = 883,678,679,013.57
  5. Step 5: Solve for x
    x = 883,678,679,013.57/1,272,786.81
  6. Step 6: Final answer
    x = 694,286.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.