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Finding the Fourth Proportional to 636,553.17, 878,423.27 and 350,072.37

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Solution

The fourth proportional to 636,553.17, 878,423.27 and 350,072.37 is: 483,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,553.17 : 878,423.27 = 350,072.37 : x
  2. Step 2: Convert to fraction form
    636,553.17/878,423.27 = 350,072.37/x
  3. Step 3: Cross multiply
    636,553.17x = 878,423.27 × 350,072.37
  4. Step 4: Simplify right side
    636,553.17x = 307,511,714,241.69
  5. Step 5: Solve for x
    x = 307,511,714,241.69/636,553.17
  6. Step 6: Final answer
    x = 483,088.81

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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.