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Finding the Fourth Proportional to 617,758.58, 852,500.32 and 345,828.71

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Solution

The fourth proportional to 617,758.58, 852,500.32 and 345,828.71 is: 477,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,758.58 : 852,500.32 = 345,828.71 : x
  2. Step 2: Convert to fraction form
    617,758.58/852,500.32 = 345,828.71/x
  3. Step 3: Cross multiply
    617,758.58x = 852,500.32 × 345,828.71
  4. Step 4: Simplify right side
    617,758.58x = 294,819,085,940.19
  5. Step 5: Solve for x
    x = 294,819,085,940.19/617,758.58
  6. Step 6: Final answer
    x = 477,239.97

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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.