Home / 851,129.62-1,174,558.58-469,162.78

Finding the Fourth Proportional to 851,129.62, 1,174,558.58 and 469,162.78

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Solution

The fourth proportional to 851,129.62, 1,174,558.58 and 469,162.78 is: 647,444.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,129.62 : 1,174,558.58 = 469,162.78 : x
  2. Step 2: Convert to fraction form
    851,129.62/1,174,558.58 = 469,162.78/x
  3. Step 3: Cross multiply
    851,129.62x = 1,174,558.58 × 469,162.78
  4. Step 4: Simplify right side
    851,129.62x = 551,059,168,665.65
  5. Step 5: Solve for x
    x = 551,059,168,665.65/851,129.62
  6. Step 6: Final answer
    x = 647,444.47

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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.