Home / 1,429,135.70-2,142,072.84-575,660.78

Finding the Fourth Proportional to 1,429,135.70, 2,142,072.84 and 575,660.78

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Solution

The fourth proportional to 1,429,135.70, 2,142,072.84 and 575,660.78 is: 862,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,135.70 : 2,142,072.84 = 575,660.78 : x
  2. Step 2: Convert to fraction form
    1,429,135.70/2,142,072.84 = 575,660.78/x
  3. Step 3: Cross multiply
    1,429,135.70x = 2,142,072.84 × 575,660.78
  4. Step 4: Simplify right side
    1,429,135.70x = 1,233,107,321,891.22
  5. Step 5: Solve for x
    x = 1,233,107,321,891.22/1,429,135.70
  6. Step 6: Final answer
    x = 862,834.31

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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.