Home / 851,144.64-1,174,579.80-469,179.84

Finding the Fourth Proportional to 851,144.64, 1,174,579.80 and 469,179.84

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Solution

The fourth proportional to 851,144.64, 1,174,579.80 and 469,179.84 is: 647,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,144.64 : 1,174,579.80 = 469,179.84 : x
  2. Step 2: Convert to fraction form
    851,144.64/1,174,579.80 = 469,179.84/x
  3. Step 3: Cross multiply
    851,144.64x = 1,174,579.80 × 469,179.84
  4. Step 4: Simplify right side
    851,144.64x = 551,089,162,631.23
  5. Step 5: Solve for x
    x = 551,089,162,631.23/851,144.64
  6. Step 6: Final answer
    x = 647,468.29

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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.