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Finding the Fourth Proportional to 648,009.84, 894,250.68 and 361,530.24

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Solution

The fourth proportional to 648,009.84, 894,250.68 and 361,530.24 is: 498,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,009.84 : 894,250.68 = 361,530.24 : x
  2. Step 2: Convert to fraction form
    648,009.84/894,250.68 = 361,530.24/x
  3. Step 3: Cross multiply
    648,009.84x = 894,250.68 × 361,530.24
  4. Step 4: Simplify right side
    648,009.84x = 323,298,662,960.56
  5. Step 5: Solve for x
    x = 323,298,662,960.56/648,009.84
  6. Step 6: Final answer
    x = 498,910.11

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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.