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Finding the Fourth Proportional to 1,310,827.31, 1,964,237.96 and 882,780.38

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Solution

The fourth proportional to 1,310,827.31, 1,964,237.96 and 882,780.38 is: 1,322,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,827.31 : 1,964,237.96 = 882,780.38 : x
  2. Step 2: Convert to fraction form
    1,310,827.31/1,964,237.96 = 882,780.38/x
  3. Step 3: Cross multiply
    1,310,827.31x = 1,964,237.96 × 882,780.38
  4. Step 4: Simplify right side
    1,310,827.31x = 1,733,990,722,918.04
  5. Step 5: Solve for x
    x = 1,733,990,722,918.04/1,310,827.31
  6. Step 6: Final answer
    x = 1,322,821.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.