Home / 1,317,141.14-1,817,958.50-857,455.07

Finding the Fourth Proportional to 1,317,141.14, 1,817,958.50 and 857,455.07

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Solution

The fourth proportional to 1,317,141.14, 1,817,958.50 and 857,455.07 is: 1,183,485.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,141.14 : 1,817,958.50 = 857,455.07 : x
  2. Step 2: Convert to fraction form
    1,317,141.14/1,817,958.50 = 857,455.07/x
  3. Step 3: Cross multiply
    1,317,141.14x = 1,817,958.50 × 857,455.07
  4. Step 4: Simplify right side
    1,317,141.14x = 1,558,817,722,712.98
  5. Step 5: Solve for x
    x = 1,558,817,722,712.98/1,317,141.14
  6. Step 6: Final answer
    x = 1,183,485.72

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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.