Home / 1,391,880.06-2,087,821.24-381,010.40

Finding the Fourth Proportional to 1,391,880.06, 2,087,821.24 and 381,010.40

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Solution

The fourth proportional to 1,391,880.06, 2,087,821.24 and 381,010.40 is: 571,515.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,880.06 : 2,087,821.24 = 381,010.40 : x
  2. Step 2: Convert to fraction form
    1,391,880.06/2,087,821.24 = 381,010.40/x
  3. Step 3: Cross multiply
    1,391,880.06x = 2,087,821.24 × 381,010.40
  4. Step 4: Simplify right side
    1,391,880.06x = 795,481,605,780.90
  5. Step 5: Solve for x
    x = 795,481,605,780.90/1,391,880.06
  6. Step 6: Final answer
    x = 571,515.91

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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.