Home / 1,290,311.40-1,935,006.30-448,890.60

Finding the Fourth Proportional to 1,290,311.40, 1,935,006.30 and 448,890.60

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Solution

The fourth proportional to 1,290,311.40, 1,935,006.30 and 448,890.60 is: 673,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,311.40 : 1,935,006.30 = 448,890.60 : x
  2. Step 2: Convert to fraction form
    1,290,311.40/1,935,006.30 = 448,890.60/x
  3. Step 3: Cross multiply
    1,290,311.40x = 1,935,006.30 × 448,890.60
  4. Step 4: Simplify right side
    1,290,311.40x = 868,606,139,010.78
  5. Step 5: Solve for x
    x = 868,606,139,010.78/1,290,311.40
  6. Step 6: Final answer
    x = 673,175.59

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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.