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Finding the Fourth Proportional to 503,247.33, 694,521.34 and 288,407.39

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Solution

The fourth proportional to 503,247.33, 694,521.34 and 288,407.39 is: 398,025.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,247.33 : 694,521.34 = 288,407.39 : x
  2. Step 2: Convert to fraction form
    503,247.33/694,521.34 = 288,407.39/x
  3. Step 3: Cross multiply
    503,247.33x = 694,521.34 × 288,407.39
  4. Step 4: Simplify right side
    503,247.33x = 200,305,082,775.08
  5. Step 5: Solve for x
    x = 200,305,082,775.08/503,247.33
  6. Step 6: Final answer
    x = 398,025.13

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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.