Home / 1,731,223.73-2,389,379.40-1,172,164.57

Finding the Fourth Proportional to 1,731,223.73, 2,389,379.40 and 1,172,164.57

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Solution

The fourth proportional to 1,731,223.73, 2,389,379.40 and 1,172,164.57 is: 1,617,783.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731,223.73 : 2,389,379.40 = 1,172,164.57 : x
  2. Step 2: Convert to fraction form
    1,731,223.73/2,389,379.40 = 1,172,164.57/x
  3. Step 3: Cross multiply
    1,731,223.73x = 2,389,379.40 × 1,172,164.57
  4. Step 4: Simplify right side
    1,731,223.73x = 2,800,745,869,345.99
  5. Step 5: Solve for x
    x = 2,800,745,869,345.99/1,731,223.73
  6. Step 6: Final answer
    x = 1,617,783.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.