Home / 876,651.80-1,314,977.70-811,697.90

Finding the Fourth Proportional to 876,651.80, 1,314,977.70 and 811,697.90

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Solution

The fourth proportional to 876,651.80, 1,314,977.70 and 811,697.90 is: 1,217,546.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,651.80 : 1,314,977.70 = 811,697.90 : x
  2. Step 2: Convert to fraction form
    876,651.80/1,314,977.70 = 811,697.90/x
  3. Step 3: Cross multiply
    876,651.80x = 1,314,977.70 × 811,697.90
  4. Step 4: Simplify right side
    876,651.80x = 1,067,364,637,636.83
  5. Step 5: Solve for x
    x = 1,067,364,637,636.83/876,651.80
  6. Step 6: Final answer
    x = 1,217,546.85

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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.