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Finding the Fourth Proportional to 615,909, 849,956.98 and 333,285

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Solution

The fourth proportional to 615,909, 849,956.98 and 333,285 is: 459,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,909 : 849,956.98 = 333,285 : x
  2. Step 2: Convert to fraction form
    615,909/849,956.98 = 333,285/x
  3. Step 3: Cross multiply
    615,909x = 849,956.98 × 333,285
  4. Step 4: Simplify right side
    615,909x = 283,277,912,079.30
  5. Step 5: Solve for x
    x = 283,277,912,079.30/615,909
  6. Step 6: Final answer
    x = 459,934.69

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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.