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Finding the Fourth Proportional to 488,602.17, 673,991.49 and 284,631.60

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Solution

The fourth proportional to 488,602.17, 673,991.49 and 284,631.60 is: 392,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,602.17 : 673,991.49 = 284,631.60 : x
  2. Step 2: Convert to fraction form
    488,602.17/673,991.49 = 284,631.60/x
  3. Step 3: Cross multiply
    488,602.17x = 673,991.49 × 284,631.60
  4. Step 4: Simplify right side
    488,602.17x = 191,839,276,185.08
  5. Step 5: Solve for x
    x = 191,839,276,185.08/488,602.17
  6. Step 6: Final answer
    x = 392,628.78

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1.5x scale

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.