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Finding the Fourth Proportional to 503,046.56, 693,999.38 and 285,209.28

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Solution

The fourth proportional to 503,046.56, 693,999.38 and 285,209.28 is: 393,472.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,046.56 : 693,999.38 = 285,209.28 : x
  2. Step 2: Convert to fraction form
    503,046.56/693,999.38 = 285,209.28/x
  3. Step 3: Cross multiply
    503,046.56x = 693,999.38 × 285,209.28
  4. Step 4: Simplify right side
    503,046.56x = 197,935,063,490.25
  5. Step 5: Solve for x
    x = 197,935,063,490.25/503,046.56
  6. Step 6: Final answer
    x = 393,472.65

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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.