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Finding the Fourth Proportional to 626,552.61, 864,644.27 and 340,072.70

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Solution

The fourth proportional to 626,552.61, 864,644.27 and 340,072.70 is: 469,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,552.61 : 864,644.27 = 340,072.70 : x
  2. Step 2: Convert to fraction form
    626,552.61/864,644.27 = 340,072.70/x
  3. Step 3: Cross multiply
    626,552.61x = 864,644.27 × 340,072.70
  4. Step 4: Simplify right side
    626,552.61x = 294,041,905,414.84
  5. Step 5: Solve for x
    x = 294,041,905,414.84/626,552.61
  6. Step 6: Final answer
    x = 469,301.22

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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.