Home / 1,112,954.80-1,668,703.20-438,629.80

Finding the Fourth Proportional to 1,112,954.80, 1,668,703.20 and 438,629.80

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Solution

The fourth proportional to 1,112,954.80, 1,668,703.20 and 438,629.80 is: 657,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,954.80 : 1,668,703.20 = 438,629.80 : x
  2. Step 2: Convert to fraction form
    1,112,954.80/1,668,703.20 = 438,629.80/x
  3. Step 3: Cross multiply
    1,112,954.80x = 1,668,703.20 × 438,629.80
  4. Step 4: Simplify right side
    1,112,954.80x = 731,942,950,875.36
  5. Step 5: Solve for x
    x = 731,942,950,875.36/1,112,954.80
  6. Step 6: Final answer
    x = 657,657.39

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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.