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Finding the Fourth Proportional to 626,493.56, 864,553.92 and 340,013.84

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Solution

The fourth proportional to 626,493.56, 864,553.92 and 340,013.84 is: 469,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,493.56 : 864,553.92 = 340,013.84 : x
  2. Step 2: Convert to fraction form
    626,493.56/864,553.92 = 340,013.84/x
  3. Step 3: Cross multiply
    626,493.56x = 864,553.92 × 340,013.84
  4. Step 4: Simplify right side
    626,493.56x = 293,960,298,226.25
  5. Step 5: Solve for x
    x = 293,960,298,226.25/626,493.56
  6. Step 6: Final answer
    x = 469,215.20

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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.