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Finding the Fourth Proportional to 626,540.35, 864,626.49 and 340,060.45

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Solution

The fourth proportional to 626,540.35, 864,626.49 and 340,060.45 is: 469,283.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,540.35 : 864,626.49 = 340,060.45 : x
  2. Step 2: Convert to fraction form
    626,540.35/864,626.49 = 340,060.45/x
  3. Step 3: Cross multiply
    626,540.35x = 864,626.49 × 340,060.45
  4. Step 4: Simplify right side
    626,540.35x = 294,025,273,271.32
  5. Step 5: Solve for x
    x = 294,025,273,271.32/626,540.35
  6. Step 6: Final answer
    x = 469,283.86

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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.