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Finding the Fourth Proportional to 639,549.02, 882,572.36 and 353,063

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Solution

The fourth proportional to 639,549.02, 882,572.36 and 353,063 is: 487,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,549.02 : 882,572.36 = 353,063 : x
  2. Step 2: Convert to fraction form
    639,549.02/882,572.36 = 353,063/x
  3. Step 3: Cross multiply
    639,549.02x = 882,572.36 × 353,063
  4. Step 4: Simplify right side
    639,549.02x = 311,603,645,138.68
  5. Step 5: Solve for x
    x = 311,603,645,138.68/639,549.02
  6. Step 6: Final answer
    x = 487,224.02

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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.