Home / 1,112,039.20-1,668,058.80-663,266.80

Finding the Fourth Proportional to 1,112,039.20, 1,668,058.80 and 663,266.80

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Solution

The fourth proportional to 1,112,039.20, 1,668,058.80 and 663,266.80 is: 994,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,039.20 : 1,668,058.80 = 663,266.80 : x
  2. Step 2: Convert to fraction form
    1,112,039.20/1,668,058.80 = 663,266.80/x
  3. Step 3: Cross multiply
    1,112,039.20x = 1,668,058.80 × 663,266.80
  4. Step 4: Simplify right side
    1,112,039.20x = 1,106,368,022,487.84
  5. Step 5: Solve for x
    x = 1,106,368,022,487.84/1,112,039.20
  6. Step 6: Final answer
    x = 994,900.20

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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.