Home / 1,681,448.80-2,320,455.36-917,544.28

Finding the Fourth Proportional to 1,681,448.80, 2,320,455.36 and 917,544.28

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Solution

The fourth proportional to 1,681,448.80, 2,320,455.36 and 917,544.28 is: 1,266,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,448.80 : 2,320,455.36 = 917,544.28 : x
  2. Step 2: Convert to fraction form
    1,681,448.80/2,320,455.36 = 917,544.28/x
  3. Step 3: Cross multiply
    1,681,448.80x = 2,320,455.36 × 917,544.28
  4. Step 4: Simplify right side
    1,681,448.80x = 2,129,120,542,563.34
  5. Step 5: Solve for x
    x = 2,129,120,542,563.34/1,681,448.80
  6. Step 6: Final answer
    x = 1,266,241.67

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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.