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Finding the Fourth Proportional to 626,425.68, 864,467.41 and 339,945.77

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Solution

The fourth proportional to 626,425.68, 864,467.41 and 339,945.77 is: 469,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,425.68 : 864,467.41 = 339,945.77 : x
  2. Step 2: Convert to fraction form
    626,425.68/864,467.41 = 339,945.77/x
  3. Step 3: Cross multiply
    626,425.68x = 864,467.41 × 339,945.77
  4. Step 4: Simplify right side
    626,425.68x = 293,872,039,332.36
  5. Step 5: Solve for x
    x = 293,872,039,332.36/626,425.68
  6. Step 6: Final answer
    x = 469,125.15

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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.