Home / 825,637.80-1,238,456.70-742,969.20

Finding the Fourth Proportional to 825,637.80, 1,238,456.70 and 742,969.20

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Solution

The fourth proportional to 825,637.80, 1,238,456.70 and 742,969.20 is: 1,114,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,637.80 : 1,238,456.70 = 742,969.20 : x
  2. Step 2: Convert to fraction form
    825,637.80/1,238,456.70 = 742,969.20/x
  3. Step 3: Cross multiply
    825,637.80x = 1,238,456.70 × 742,969.20
  4. Step 4: Simplify right side
    825,637.80x = 920,135,183,633.64
  5. Step 5: Solve for x
    x = 920,135,183,633.64/825,637.80
  6. Step 6: Final answer
    x = 1,114,453.80

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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.