Home / 1,075,711.82-1,616,321.72-811,956.38

Finding the Fourth Proportional to 1,075,711.82, 1,616,321.72 and 811,956.38

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Solution

The fourth proportional to 1,075,711.82, 1,616,321.72 and 811,956.38 is: 1,220,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,711.82 : 1,616,321.72 = 811,956.38 : x
  2. Step 2: Convert to fraction form
    1,075,711.82/1,616,321.72 = 811,956.38/x
  3. Step 3: Cross multiply
    1,075,711.82x = 1,616,321.72 × 811,956.38
  4. Step 4: Simplify right side
    1,075,711.82x = 1,312,382,726,634.86
  5. Step 5: Solve for x
    x = 1,312,382,726,634.86/1,075,711.82
  6. Step 6: Final answer
    x = 1,220,013.30

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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.