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Finding the Fourth Proportional to 503,519.73, 694,836.81 and 288,510.36

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Solution

The fourth proportional to 503,519.73, 694,836.81 and 288,510.36 is: 398,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,519.73 : 694,836.81 = 288,510.36 : x
  2. Step 2: Convert to fraction form
    503,519.73/694,836.81 = 288,510.36/x
  3. Step 3: Cross multiply
    503,519.73x = 694,836.81 × 288,510.36
  4. Step 4: Simplify right side
    503,519.73x = 200,467,618,194.35
  5. Step 5: Solve for x
    x = 200,467,618,194.35/503,519.73
  6. Step 6: Final answer
    x = 398,132.60

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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.