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Finding the Fourth Proportional to 503,068.82, 694,285.91 and 288,237.38

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Solution

The fourth proportional to 503,068.82, 694,285.91 and 288,237.38 is: 397,796.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,068.82 : 694,285.91 = 288,237.38 : x
  2. Step 2: Convert to fraction form
    503,068.82/694,285.91 = 288,237.38/x
  3. Step 3: Cross multiply
    503,068.82x = 694,285.91 × 288,237.38
  4. Step 4: Simplify right side
    503,068.82x = 200,119,146,756.70
  5. Step 5: Solve for x
    x = 200,119,146,756.70/503,068.82
  6. Step 6: Final answer
    x = 397,796.76

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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.