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Finding the Fourth Proportional to 626,536.36, 864,620.92 and 340,056.50

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Solution

The fourth proportional to 626,536.36, 864,620.92 and 340,056.50 is: 469,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,536.36 : 864,620.92 = 340,056.50 : x
  2. Step 2: Convert to fraction form
    626,536.36/864,620.92 = 340,056.50/x
  3. Step 3: Cross multiply
    626,536.36x = 864,620.92 × 340,056.50
  4. Step 4: Simplify right side
    626,536.36x = 294,019,963,881.98
  5. Step 5: Solve for x
    x = 294,019,963,881.98/626,536.36
  6. Step 6: Final answer
    x = 469,278.37

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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.