Home / 1,203,720-1,805,816.40-445,567.74

Finding the Fourth Proportional to 1,203,720, 1,805,816.40 and 445,567.74

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Solution

The fourth proportional to 1,203,720, 1,805,816.40 and 445,567.74 is: 668,439.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,720 : 1,805,816.40 = 445,567.74 : x
  2. Step 2: Convert to fraction form
    1,203,720/1,805,816.40 = 445,567.74/x
  3. Step 3: Cross multiply
    1,203,720x = 1,805,816.40 × 445,567.74
  4. Step 4: Simplify right side
    1,203,720x = 804,613,532,202.94
  5. Step 5: Solve for x
    x = 804,613,532,202.94/1,203,720
  6. Step 6: Final answer
    x = 668,439.12

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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.