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Finding the Fourth Proportional to 503,262.89, 694,521.99 and 288,444.51

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Solution

The fourth proportional to 503,262.89, 694,521.99 and 288,444.51 is: 398,064.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,262.89 : 694,521.99 = 288,444.51 : x
  2. Step 2: Convert to fraction form
    503,262.89/694,521.99 = 288,444.51/x
  3. Step 3: Cross multiply
    503,262.89x = 694,521.99 × 288,444.51
  4. Step 4: Simplify right side
    503,262.89x = 200,331,055,089.78
  5. Step 5: Solve for x
    x = 200,331,055,089.78/503,262.89
  6. Step 6: Final answer
    x = 398,064.43

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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.