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Finding the Fourth Proportional to 503,083.35, 694,353.60 and 288,367.20

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Solution

The fourth proportional to 503,083.35, 694,353.60 and 288,367.20 is: 398,003.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,083.35 : 694,353.60 = 288,367.20 : x
  2. Step 2: Convert to fraction form
    503,083.35/694,353.60 = 288,367.20/x
  3. Step 3: Cross multiply
    503,083.35x = 694,353.60 × 288,367.20
  4. Step 4: Simplify right side
    503,083.35x = 200,228,803,441.92
  5. Step 5: Solve for x
    x = 200,228,803,441.92/503,083.35
  6. Step 6: Final answer
    x = 398,003.24

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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.