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Finding the Fourth Proportional to 1,262,173.24, 1,742,023.56 and 745,905.16

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Solution

The fourth proportional to 1,262,173.24, 1,742,023.56 and 745,905.16 is: 1,029,481.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,173.24 : 1,742,023.56 = 745,905.16 : x
  2. Step 2: Convert to fraction form
    1,262,173.24/1,742,023.56 = 745,905.16/x
  3. Step 3: Cross multiply
    1,262,173.24x = 1,742,023.56 × 745,905.16
  4. Step 4: Simplify right side
    1,262,173.24x = 1,299,384,362,245.57
  5. Step 5: Solve for x
    x = 1,299,384,362,245.57/1,262,173.24
  6. Step 6: Final answer
    x = 1,029,481.79

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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.