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Finding the Fourth Proportional to 1,665,665.63, 2,298,619.34 and 901,719.19

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Solution

The fourth proportional to 1,665,665.63, 2,298,619.34 and 901,719.19 is: 1,244,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665,665.63 : 2,298,619.34 = 901,719.19 : x
  2. Step 2: Convert to fraction form
    1,665,665.63/2,298,619.34 = 901,719.19/x
  3. Step 3: Cross multiply
    1,665,665.63x = 2,298,619.34 × 901,719.19
  4. Step 4: Simplify right side
    1,665,665.63x = 2,072,709,169,383.13
  5. Step 5: Solve for x
    x = 2,072,709,169,383.13/1,665,665.63
  6. Step 6: Final answer
    x = 1,244,372.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.