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Finding the Fourth Proportional to 626,558.49, 864,651.51 and 340,078.50

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Solution

The fourth proportional to 626,558.49, 864,651.51 and 340,078.50 is: 469,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,558.49 : 864,651.51 = 340,078.50 : x
  2. Step 2: Convert to fraction form
    626,558.49/864,651.51 = 340,078.50/x
  3. Step 3: Cross multiply
    626,558.49x = 864,651.51 × 340,078.50
  4. Step 4: Simplify right side
    626,558.49x = 294,049,388,543.54
  5. Step 5: Solve for x
    x = 294,049,388,543.54/626,558.49
  6. Step 6: Final answer
    x = 469,308.76

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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.