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Finding the Fourth Proportional to 471,486.34, 650,665.19 and 290,302.77

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Solution

The fourth proportional to 471,486.34, 650,665.19 and 290,302.77 is: 400,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,486.34 : 650,665.19 = 290,302.77 : x
  2. Step 2: Convert to fraction form
    471,486.34/650,665.19 = 290,302.77/x
  3. Step 3: Cross multiply
    471,486.34x = 650,665.19 × 290,302.77
  4. Step 4: Simplify right side
    471,486.34x = 188,889,906,999.58
  5. Step 5: Solve for x
    x = 188,889,906,999.58/471,486.34
  6. Step 6: Final answer
    x = 400,626.47

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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.