Home / 1,091,700.20-1,637,550.30-811,764.20

Finding the Fourth Proportional to 1,091,700.20, 1,637,550.30 and 811,764.20

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Solution

The fourth proportional to 1,091,700.20, 1,637,550.30 and 811,764.20 is: 1,217,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,700.20 : 1,637,550.30 = 811,764.20 : x
  2. Step 2: Convert to fraction form
    1,091,700.20/1,637,550.30 = 811,764.20/x
  3. Step 3: Cross multiply
    1,091,700.20x = 1,637,550.30 × 811,764.20
  4. Step 4: Simplify right side
    1,091,700.20x = 1,329,304,709,239.26
  5. Step 5: Solve for x
    x = 1,329,304,709,239.26/1,091,700.20
  6. Step 6: Final answer
    x = 1,217,646.30

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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.