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Finding the Fourth Proportional to 875,016, 1,207,390.86 and 493,034.58

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Solution

The fourth proportional to 875,016, 1,207,390.86 and 493,034.58 is: 680,313.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,016 : 1,207,390.86 = 493,034.58 : x
  2. Step 2: Convert to fraction form
    875,016/1,207,390.86 = 493,034.58/x
  3. Step 3: Cross multiply
    875,016x = 1,207,390.86 × 493,034.58
  4. Step 4: Simplify right side
    875,016x = 595,285,445,555.94
  5. Step 5: Solve for x
    x = 595,285,445,555.94/875,016
  6. Step 6: Final answer
    x = 680,313.78

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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.