Home / 1,724,419.70-2,379,699.84-999,687.54

Finding the Fourth Proportional to 1,724,419.70, 2,379,699.84 and 999,687.54

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Solution

The fourth proportional to 1,724,419.70, 2,379,699.84 and 999,687.54 is: 1,379,569.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724,419.70 : 2,379,699.84 = 999,687.54 : x
  2. Step 2: Convert to fraction form
    1,724,419.70/2,379,699.84 = 999,687.54/x
  3. Step 3: Cross multiply
    1,724,419.70x = 2,379,699.84 × 999,687.54
  4. Step 4: Simplify right side
    1,724,419.70x = 2,378,956,278,987.99
  5. Step 5: Solve for x
    x = 2,378,956,278,987.99/1,724,419.70
  6. Step 6: Final answer
    x = 1,379,569.18

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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.