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Finding the Fourth Proportional to 638,503.70, 958,037.85 and 334,825.29

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Solution

The fourth proportional to 638,503.70, 958,037.85 and 334,825.29 is: 502,385.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,503.70 : 958,037.85 = 334,825.29 : x
  2. Step 2: Convert to fraction form
    638,503.70/958,037.85 = 334,825.29/x
  3. Step 3: Cross multiply
    638,503.70x = 958,037.85 × 334,825.29
  4. Step 4: Simplify right side
    638,503.70x = 320,775,300,957.23
  5. Step 5: Solve for x
    x = 320,775,300,957.23/638,503.70
  6. Step 6: Final answer
    x = 502,385.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.