Home / 1,266,072.80-1,899,043.20-319,451.76

Finding the Fourth Proportional to 1,266,072.80, 1,899,043.20 and 319,451.76

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Solution

The fourth proportional to 1,266,072.80, 1,899,043.20 and 319,451.76 is: 479,160.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,072.80 : 1,899,043.20 = 319,451.76 : x
  2. Step 2: Convert to fraction form
    1,266,072.80/1,899,043.20 = 319,451.76/x
  3. Step 3: Cross multiply
    1,266,072.80x = 1,899,043.20 × 319,451.76
  4. Step 4: Simplify right side
    1,266,072.80x = 606,652,692,556.03
  5. Step 5: Solve for x
    x = 606,652,692,556.03/1,266,072.80
  6. Step 6: Final answer
    x = 479,160.99

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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.