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Finding the Fourth Proportional to 488,688.31, 732,581.43 and 338,999.23

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Solution

The fourth proportional to 488,688.31, 732,581.43 and 338,999.23 is: 508,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,688.31 : 732,581.43 = 338,999.23 : x
  2. Step 2: Convert to fraction form
    488,688.31/732,581.43 = 338,999.23/x
  3. Step 3: Cross multiply
    488,688.31x = 732,581.43 × 338,999.23
  4. Step 4: Simplify right side
    488,688.31x = 248,344,540,682.30
  5. Step 5: Solve for x
    x = 248,344,540,682.30/488,688.31
  6. Step 6: Final answer
    x = 508,185.97

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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.