Home / 380,419.94-524,979.19-210,654.06

Finding the Fourth Proportional to 380,419.94, 524,979.19 and 210,654.06

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Solution

The fourth proportional to 380,419.94, 524,979.19 and 210,654.06 is: 290,702.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,419.94 : 524,979.19 = 210,654.06 : x
  2. Step 2: Convert to fraction form
    380,419.94/524,979.19 = 210,654.06/x
  3. Step 3: Cross multiply
    380,419.94x = 524,979.19 × 210,654.06
  4. Step 4: Simplify right side
    380,419.94x = 110,588,997,789.01
  5. Step 5: Solve for x
    x = 110,588,997,789.01/380,419.94
  6. Step 6: Final answer
    x = 290,702.42

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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.