Home / 1,266,040.91-1,899,053.15-319,412.54

Finding the Fourth Proportional to 1,266,040.91, 1,899,053.15 and 319,412.54

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Solution

The fourth proportional to 1,266,040.91, 1,899,053.15 and 319,412.54 is: 479,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,040.91 : 1,899,053.15 = 319,412.54 : x
  2. Step 2: Convert to fraction form
    1,266,040.91/1,899,053.15 = 319,412.54/x
  3. Step 3: Cross multiply
    1,266,040.91x = 1,899,053.15 × 319,412.54
  4. Step 4: Simplify right side
    1,266,040.91x = 606,581,379,144.17
  5. Step 5: Solve for x
    x = 606,581,379,144.17/1,266,040.91
  6. Step 6: Final answer
    x = 479,116.73

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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.