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Finding the Fourth Proportional to 508,775.52, 701,967.96 and 317,982.72

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Solution

The fourth proportional to 508,775.52, 701,967.96 and 317,982.72 is: 438,727.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,775.52 : 701,967.96 = 317,982.72 : x
  2. Step 2: Convert to fraction form
    508,775.52/701,967.96 = 317,982.72/x
  3. Step 3: Cross multiply
    508,775.52x = 701,967.96 × 317,982.72
  4. Step 4: Simplify right side
    508,775.52x = 223,213,681,273.65
  5. Step 5: Solve for x
    x = 223,213,681,273.65/508,775.52
  6. Step 6: Final answer
    x = 438,727.24

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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.