Home / 1,216,019.08-1,678,106.14-664,736.82

Finding the Fourth Proportional to 1,216,019.08, 1,678,106.14 and 664,736.82

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Solution

The fourth proportional to 1,216,019.08, 1,678,106.14 and 664,736.82 is: 917,336.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,019.08 : 1,678,106.14 = 664,736.82 : x
  2. Step 2: Convert to fraction form
    1,216,019.08/1,678,106.14 = 664,736.82/x
  3. Step 3: Cross multiply
    1,216,019.08x = 1,678,106.14 × 664,736.82
  4. Step 4: Simplify right side
    1,216,019.08x = 1,115,498,939,126.07
  5. Step 5: Solve for x
    x = 1,115,498,939,126.07/1,216,019.08
  6. Step 6: Final answer
    x = 917,336.71

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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.