Home / 1,172,642.78-1,618,246.68-636,098.78

Finding the Fourth Proportional to 1,172,642.78, 1,618,246.68 and 636,098.78

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Solution

The fourth proportional to 1,172,642.78, 1,618,246.68 and 636,098.78 is: 877,816.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,642.78 : 1,618,246.68 = 636,098.78 : x
  2. Step 2: Convert to fraction form
    1,172,642.78/1,618,246.68 = 636,098.78/x
  3. Step 3: Cross multiply
    1,172,642.78x = 1,618,246.68 × 636,098.78
  4. Step 4: Simplify right side
    1,172,642.78x = 1,029,364,738,887.05
  5. Step 5: Solve for x
    x = 1,029,364,738,887.05/1,172,642.78
  6. Step 6: Final answer
    x = 877,816.12

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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.