Home / 1,172,887.68-1,618,594.88-636,347.52

Finding the Fourth Proportional to 1,172,887.68, 1,618,594.88 and 636,347.52

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Solution

The fourth proportional to 1,172,887.68, 1,618,594.88 and 636,347.52 is: 878,164.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,887.68 : 1,618,594.88 = 636,347.52 : x
  2. Step 2: Convert to fraction form
    1,172,887.68/1,618,594.88 = 636,347.52/x
  3. Step 3: Cross multiply
    1,172,887.68x = 1,618,594.88 × 636,347.52
  4. Step 4: Simplify right side
    1,172,887.68x = 1,029,988,837,772.70
  5. Step 5: Solve for x
    x = 1,029,988,837,772.70/1,172,887.68
  6. Step 6: Final answer
    x = 878,164.94

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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.