Home / 1,420,862.40-2,131,244.46-355,913.64

Finding the Fourth Proportional to 1,420,862.40, 2,131,244.46 and 355,913.64

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Solution

The fourth proportional to 1,420,862.40, 2,131,244.46 and 355,913.64 is: 533,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,862.40 : 2,131,244.46 = 355,913.64 : x
  2. Step 2: Convert to fraction form
    1,420,862.40/2,131,244.46 = 355,913.64/x
  3. Step 3: Cross multiply
    1,420,862.40x = 2,131,244.46 × 355,913.64
  4. Step 4: Simplify right side
    1,420,862.40x = 758,538,973,488.44
  5. Step 5: Solve for x
    x = 758,538,973,488.44/1,420,862.40
  6. Step 6: Final answer
    x = 533,858.15

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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.