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Finding the Fourth Proportional to 617,273.46, 851,802.89 and 345,288.84

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Solution

The fourth proportional to 617,273.46, 851,802.89 and 345,288.84 is: 476,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,273.46 : 851,802.89 = 345,288.84 : x
  2. Step 2: Convert to fraction form
    617,273.46/851,802.89 = 345,288.84/x
  3. Step 3: Cross multiply
    617,273.46x = 851,802.89 × 345,288.84
  4. Step 4: Simplify right side
    617,273.46x = 294,118,030,070.30
  5. Step 5: Solve for x
    x = 294,118,030,070.30/617,273.46
  6. Step 6: Final answer
    x = 476,479.31

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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.