Home / 1,111,883.67-1,668,240.63-438,434.46

Finding the Fourth Proportional to 1,111,883.67, 1,668,240.63 and 438,434.46

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Solution

The fourth proportional to 1,111,883.67, 1,668,240.63 and 438,434.46 is: 657,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,883.67 : 1,668,240.63 = 438,434.46 : x
  2. Step 2: Convert to fraction form
    1,111,883.67/1,668,240.63 = 438,434.46/x
  3. Step 3: Cross multiply
    1,111,883.67x = 1,668,240.63 × 438,434.46
  4. Step 4: Simplify right side
    1,111,883.67x = 731,414,179,764.11
  5. Step 5: Solve for x
    x = 731,414,179,764.11/1,111,883.67
  6. Step 6: Final answer
    x = 657,815.38

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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.