Home / 1,312,515.58-1,968,815.76-413,965.84

Finding the Fourth Proportional to 1,312,515.58, 1,968,815.76 and 413,965.84

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Solution

The fourth proportional to 1,312,515.58, 1,968,815.76 and 413,965.84 is: 620,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,515.58 : 1,968,815.76 = 413,965.84 : x
  2. Step 2: Convert to fraction form
    1,312,515.58/1,968,815.76 = 413,965.84/x
  3. Step 3: Cross multiply
    1,312,515.58x = 1,968,815.76 × 413,965.84
  4. Step 4: Simplify right side
    1,312,515.58x = 815,022,469,893.64
  5. Step 5: Solve for x
    x = 815,022,469,893.64/1,312,515.58
  6. Step 6: Final answer
    x = 620,962.13

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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.