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Finding the Fourth Proportional to 626,494.06, 864,554.61 and 340,014.34

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Solution

The fourth proportional to 626,494.06, 864,554.61 and 340,014.34 is: 469,215.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,494.06 : 864,554.61 = 340,014.34 : x
  2. Step 2: Convert to fraction form
    626,494.06/864,554.61 = 340,014.34/x
  3. Step 3: Cross multiply
    626,494.06x = 864,554.61 × 340,014.34
  4. Step 4: Simplify right side
    626,494.06x = 293,960,965,113.11
  5. Step 5: Solve for x
    x = 293,960,965,113.11/626,494.06
  6. Step 6: Final answer
    x = 469,215.89

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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.