Home / 1,296,203.77-1,788,262.31-811,925.83

Finding the Fourth Proportional to 1,296,203.77, 1,788,262.31 and 811,925.83

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Solution

The fourth proportional to 1,296,203.77, 1,788,262.31 and 811,925.83 is: 1,120,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,203.77 : 1,788,262.31 = 811,925.83 : x
  2. Step 2: Convert to fraction form
    1,296,203.77/1,788,262.31 = 811,925.83/x
  3. Step 3: Cross multiply
    1,296,203.77x = 1,788,262.31 × 811,925.83
  4. Step 4: Simplify right side
    1,296,203.77x = 1,451,936,360,304.47
  5. Step 5: Solve for x
    x = 1,451,936,360,304.47/1,296,203.77
  6. Step 6: Final answer
    x = 1,120,145.15

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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.