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Finding the Fourth Proportional to 652,284.60, 978,659.96 and 396,637.29

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Solution

The fourth proportional to 652,284.60, 978,659.96 and 396,637.29 is: 595,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,284.60 : 978,659.96 = 396,637.29 : x
  2. Step 2: Convert to fraction form
    652,284.60/978,659.96 = 396,637.29/x
  3. Step 3: Cross multiply
    652,284.60x = 978,659.96 × 396,637.29
  4. Step 4: Simplify right side
    652,284.60x = 388,173,034,365.91
  5. Step 5: Solve for x
    x = 388,173,034,365.91/652,284.60
  6. Step 6: Final answer
    x = 595,097.65

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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.