Home / 1,531,437.40-2,297,638.60-721,789.04

Finding the Fourth Proportional to 1,531,437.40, 2,297,638.60 and 721,789.04

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Solution

The fourth proportional to 1,531,437.40, 2,297,638.60 and 721,789.04 is: 1,082,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,437.40 : 2,297,638.60 = 721,789.04 : x
  2. Step 2: Convert to fraction form
    1,531,437.40/2,297,638.60 = 721,789.04/x
  3. Step 3: Cross multiply
    1,531,437.40x = 2,297,638.60 × 721,789.04
  4. Step 4: Simplify right side
    1,531,437.40x = 1,658,410,363,300.57
  5. Step 5: Solve for x
    x = 1,658,410,363,300.57/1,531,437.40
  6. Step 6: Final answer
    x = 1,082,910.97

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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.