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Finding the Fourth Proportional to 482,602.77, 666,023.31 and 278,662.28

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Solution

The fourth proportional to 482,602.77, 666,023.31 and 278,662.28 is: 384,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,602.77 : 666,023.31 = 278,662.28 : x
  2. Step 2: Convert to fraction form
    482,602.77/666,023.31 = 278,662.28/x
  3. Step 3: Cross multiply
    482,602.77x = 666,023.31 × 278,662.28
  4. Step 4: Simplify right side
    482,602.77x = 185,595,570,767.63
  5. Step 5: Solve for x
    x = 185,595,570,767.63/482,602.77
  6. Step 6: Final answer
    x = 384,572.12

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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.