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Finding the Fourth Proportional to 503,003.34, 694,086.39 and 288,130.59

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Solution

The fourth proportional to 503,003.34, 694,086.39 and 288,130.59 is: 397,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,003.34 : 694,086.39 = 288,130.59 : x
  2. Step 2: Convert to fraction form
    503,003.34/694,086.39 = 288,130.59/x
  3. Step 3: Cross multiply
    503,003.34x = 694,086.39 × 288,130.59
  4. Step 4: Simplify right side
    503,003.34x = 199,987,521,061.67
  5. Step 5: Solve for x
    x = 199,987,521,061.67/503,003.34
  6. Step 6: Final answer
    x = 397,586.87

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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.