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Finding the Fourth Proportional to 707,306.61, 976,043.39 and 384,997.49

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Solution

The fourth proportional to 707,306.61, 976,043.39 and 384,997.49 is: 531,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,306.61 : 976,043.39 = 384,997.49 : x
  2. Step 2: Convert to fraction form
    707,306.61/976,043.39 = 384,997.49/x
  3. Step 3: Cross multiply
    707,306.61x = 976,043.39 × 384,997.49
  4. Step 4: Simplify right side
    707,306.61x = 375,774,248,475.89
  5. Step 5: Solve for x
    x = 375,774,248,475.89/707,306.61
  6. Step 6: Final answer
    x = 531,274.90

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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.