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Finding the Fourth Proportional to 630,540.76, 945,801.09 and 293,392.84

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Solution

The fourth proportional to 630,540.76, 945,801.09 and 293,392.84 is: 440,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,540.76 : 945,801.09 = 293,392.84 : x
  2. Step 2: Convert to fraction form
    630,540.76/945,801.09 = 293,392.84/x
  3. Step 3: Cross multiply
    630,540.76x = 945,801.09 × 293,392.84
  4. Step 4: Simplify right side
    630,540.76x = 277,491,267,870.20
  5. Step 5: Solve for x
    x = 277,491,267,870.20/630,540.76
  6. Step 6: Final answer
    x = 440,084.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.