Home / 1,238,325.40-1,859,237.70-765,933.40

Finding the Fourth Proportional to 1,238,325.40, 1,859,237.70 and 765,933.40

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Solution

The fourth proportional to 1,238,325.40, 1,859,237.70 and 765,933.40 is: 1,149,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,325.40 : 1,859,237.70 = 765,933.40 : x
  2. Step 2: Convert to fraction form
    1,238,325.40/1,859,237.70 = 765,933.40/x
  3. Step 3: Cross multiply
    1,238,325.40x = 1,859,237.70 × 765,933.40
  4. Step 4: Simplify right side
    1,238,325.40x = 1,424,052,252,969.18
  5. Step 5: Solve for x
    x = 1,424,052,252,969.18/1,238,325.40
  6. Step 6: Final answer
    x = 1,149,982.27

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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.