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Finding the Fourth Proportional to 503,388.84, 694,575.90 and 288,596.28

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Solution

The fourth proportional to 503,388.84, 694,575.90 and 288,596.28 is: 398,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,388.84 : 694,575.90 = 288,596.28 : x
  2. Step 2: Convert to fraction form
    503,388.84/694,575.90 = 288,596.28/x
  3. Step 3: Cross multiply
    503,388.84x = 694,575.90 × 288,596.28
  4. Step 4: Simplify right side
    503,388.84x = 200,452,020,917.65
  5. Step 5: Solve for x
    x = 200,452,020,917.65/503,388.84
  6. Step 6: Final answer
    x = 398,205.13

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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.