Home / 1,172,870.70-1,618,755.12-805,045.56

Finding the Fourth Proportional to 1,172,870.70, 1,618,755.12 and 805,045.56

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Solution

The fourth proportional to 1,172,870.70, 1,618,755.12 and 805,045.56 is: 1,111,095.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,870.70 : 1,618,755.12 = 805,045.56 : x
  2. Step 2: Convert to fraction form
    1,172,870.70/1,618,755.12 = 805,045.56/x
  3. Step 3: Cross multiply
    1,172,870.70x = 1,618,755.12 × 805,045.56
  4. Step 4: Simplify right side
    1,172,870.70x = 1,303,171,622,083.27
  5. Step 5: Solve for x
    x = 1,303,171,622,083.27/1,172,870.70
  6. Step 6: Final answer
    x = 1,111,095.73

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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.