Home / 1,539,869.67-2,309,607.61-641,143.89

Finding the Fourth Proportional to 1,539,869.67, 2,309,607.61 and 641,143.89

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Solution

The fourth proportional to 1,539,869.67, 2,309,607.61 and 641,143.89 is: 961,633.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,869.67 : 2,309,607.61 = 641,143.89 : x
  2. Step 2: Convert to fraction form
    1,539,869.67/2,309,607.61 = 641,143.89/x
  3. Step 3: Cross multiply
    1,539,869.67x = 2,309,607.61 × 641,143.89
  4. Step 4: Simplify right side
    1,539,869.67x = 1,480,790,805,846.14
  5. Step 5: Solve for x
    x = 1,480,790,805,846.14/1,539,869.67
  6. Step 6: Final answer
    x = 961,633.85

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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.